UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                             (Amendment No. _3___ )*

                          Molson Coors Brewing Company
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                                (Name of Issuer)

                                  Common Stock
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                         (Title of Class of Securities)

                                    60871R209
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                                 (CUSIP Number)

                                November 30, 2007
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             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [ X ]   Rule 13d-1(b)

         [   ]   Rule 13d-1(c)

         [   ]   Rule 13d-1(d)

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).



                                  SCHEDULE 13G

CUSIP No.         60871R209

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          1.   Names of Reporting Persons.  I.R.S.  Identification Nos. of above
               persons (entities only).
               INVESCO Ltd.
                   AIM Advisors, Inc.
                   AIM Funds Management Inc.
                   AIM Private Asset Management, Inc.
                   PowerShares Capital Management LLC
                   PowerShares Capital Management Ireland LTD
                   INVESCO Institutional (N.A.), Inc.
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          2.   Check  the   Appropriate   Box  if  a  Member  of  a  Group  (see
               Instructions)
               (a)
               (b)

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          3.   SEC Use Only ______________________________

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          4.   Citizenship or Place of Organization
               INVESCO Ltd.: England
                   AIM Advisors, Inc.:  United States
                   AIM Funds Management Inc.:  Canada
                   AIM Private Asset Management, Inc.: United States
                   Atlantic Trust Company, N.A.: United States
                   INVESCO Institutional (N.A.), Inc.:  United States
                   PowerShares Capital Management LLC:  United States
                   PowerShares Capital Management Ireland LTD: Ireland

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                      5.   Sole Voting  Power  8,276,958:  Such shares are held
                           by the  following   entities  in  the  respective
                           amounts listed:
                              AIM Advisors, Inc.  3,789,194
                              AIM Funds Management Inc.  4,190,356
                              AIM Private Asset Management, Inc.  211,422
                              Atlantic Trust Company, N.A. - US 1,554
                              INVESCO Institutional (N.A.), Inc.  45,650
                              PowerShares Capital Management LLC   38,677
                              PowerShares Capital Management Ireland LTD 105

Number of Shares           -----------------------------------------------------
Beneficially Owned
by Each Reporting     6.    Shared Voting Power -0-
Person With
                           -----------------------------------------------------

                      7.   Sole Dispositive Power 8,276,958:  Such shares are
                           held by the  following  entities in the  respective
                           amounts listed:
                              AIM Advisors, Inc.  3,789,194
                              AIM Funds Management Inc.  4,190,356
                              AIM Private Asset Management, Inc.  211,422
                              Atlantic Trust Company, N.A. - US 1,554
                              INVESCO Institutional (N.A.), Inc.  45,650
                              PowerShares Capital Management LLC   38,677
                              PowerShares Capital Management Ireland LTD LTD 105


                           -----------------------------------------------------

          8.  Shared Dispositive Power -0-

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          9.   Aggregate Amount Beneficially Owned by Each Reporting Person
               8,276,958

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          10.  Check if the Aggregate  Amount in Row (9) Excludes Certain Shares
               (See Instructions) N/A

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          11.  Percent of Class Represented by Amount in Row (9) 5.68%
                                                                 ----
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          12.  Type of Reporting Person (See  Instructions)
               IA, HC. See Items 2 and 3 of this statement.


                                  SCHEDULE 13G

Item 1(a)     Name of Issuer:
              Molson Coors Brewing Company

Item 1(b)     Address of Issuer's Principal Executive Offices:
                   1225 17th Street
                   Suite 3200
                   Denver CO 80202

Item 2(a)     Name of Person Filing:
              INVESCO Ltd.

              In accordance with Securities and Exchange Commission Release
              No. 34-39538 (January 12, 1998), this statement on Schedule
              13G or amendment thereto is being filed by INVESCO Ltd.
              ("INVESCO"), a U.K. entity, on behalf of itself and its
              subsidiaries listed in Item 4 of the cover of this statement.
              INVESCO through such subsidiaries provides investment
              management services to institutional and individual investors
              worldwide.

              Executive officers and directors of INVESCO or its
              subsidiaries may beneficially own shares of the securities of
              the issuer to which this statement relates (the "Shares"), and
              such Shares are not reported in this statement. INVESCO and
              its subsidiaries disclaim beneficial ownership of Shares
              beneficially owned by any of their executive officers and
              directors. Each of INVESCO's direct and indirect subsidiaries
              also disclaim beneficial ownership of Shares beneficially
              owned by INVESCO and any other subsidiary.

Item 2(b)     Address of Principal Business Office:
              30 Finsbury Square
              London EC2A 1AG
              England

Item 2(c)     Citizenship:
              See the response to Item 2(a) of this statement.

Item 2(d)     Title of Class of Securities:
              Common Stock, $.01 par value per share

Item 2(e)     CUSIP Number:
              60871R209

Item 3        If this statement is filed pursuant to ss240.13d-1(b) or
              240.13d-2(b) or (c), check whether the person filing is a:

       (e) [x] An investment adviser in accordance with section 240.13d-1(b)(1)
(ii)(E)

       (g) [x] A parent holding company or control person in accordance with
section 240.13d-1(b)(1)(ii)(G)

              As noted in Item 2 above, INVESCO is making this filing on
              behalf of its subsidiaries listed herein. Each of these
              entities is either an investment adviser registered with the
              United States Securities and Exchange Commission under Section
              203 of the Investment Advisers Act of 1940, as amended, or
              under similar laws of other jurisdictions. INVESCO is a
              holding company.


Item 4        Ownership:
              Please see responses to Items 5-8 on the cover of this statement,
              which are incorporated herein by reference.

Item 5        Ownership of Five Percent or Less of a Class:

              If this statement is being filed to report the fact that as of the
              date hereof the reporting person has ceased to be the beneficial
              owner of more than five percent of the class of securities, check
              the following
              [ ]

Item 6        Ownership of More than Five Percent on Behalf of Another Person:
              N/A

Item 7        Identification and Classification of the Subsidiary Which Acquired
              the Security Being reported on By the Parent Holding Company:
              Please see Item 3 of this statement, which is incorporated
              herein by reference.

Item 8        Identification and Classification of Members of the Group:
              N/A

Item 9        Notice of Dissolution of a Group:
              N/A

Item 10       Certification:
              By signing below I certify that, to the best of my knowledge
              and belief, the securities referred to above were acquired and
              are held in the ordinary course of business and were not
              acquired and are not held for the purpose of or with the
              effect of changing or influencing the control of the issuer of
              the securities and were not acquired and are not held in
              connection with or as a participant in any transaction having
              that purpose or effect.

              Signature:
              After reasonable inquiry and to the best of my knowledge and
              belief, I certify that the information set forth in this
              statement is true, complete and correct.

                                               12/10/2007
                                    --------------------------------------------
                                                 Date

                                    INVESCO Ltd.

                                    By:      /s/ Lisa Brinkley
                                    --------------------------------------------

                                    Lisa Brinkley
                                    Chief Compliance Officer