UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 40-F/A

Amendment No. 1

o	REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934
	or
þ	ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the fiscal year ended February 26, 2011

Commission File Number 0-29898

Research In Motion Limited

(Exact name of Registrant as specified in its charter)

Ontario	3661	Not Applicable
(Province or other Jurisdiction	(Primary Standard Industrial	(I.R.S. Employer
of Incorporation or Organization)	Classification Code Number)	Identification No..)

295 Phillip Street
Waterloo, Ontario
Canada, N2L 3W8
(519) 888-7465
(Address and telephone number of Registrant’s principal executive offices)

Research In Motion Corporation
122 West John Carpenter Parkway, Suite 430
Irving, Texas 75039
(972) 650-6126
(Name, address and telephone number of agent for service in the United States)

Securities registered or to be registered pursuant to Section 12(b) of the Act:
Common Shares, without par value

Securities registered or to be registered pursuant to Section 12(g) of the Act:
None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:
None

For annual reports, indicate by check mark the information filed with this Form:

þ Annual information form þ Audited annual financial statements

     Indicate the number of outstanding shares of each of the Registrant’s classes of capital or common stock as of the close of the period covered by this annual report.

The Registrant had 523,868,644 Common Shares outstanding as at February 26, 2011.

     Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yes þ No o

     Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).

Yes þ No o

EXPLANATORY NOTE

     Research In Motion Limited (the “Registrant”) is filing this Form 40-F/A to the Registrant’s Annual Report on Form 40-F, dated March 29, 2011 (the “Form 40-F”), for the sole purpose of submitting Exhibit 101 to the Form 40-F as required by General Instruction B.(15)(a)(i) of Form 40-F and Rule 405 of Regulation S-T. Exhibit 101 was omitted from the Registrant’s timely filed Form 40-F in accordance with the 30-day grace period provided in Preliminary Note 3(a)(2)(ii) to Rule 405 of Regulation S-T.

     No other changes have been made to the Form 40-F. This Form 40-F/A speaks as of the original time of filing the Form 40-F, does not reflect events that may have occurred subsequent to such filing, and does not modify or update in any way disclosures made in the Form 40-F.

SIGNATURE

     Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized.

	RESEARCH IN MOTION LIMITED
Date: April 7 , 2011	By:	/s/ Brian Bidulka
	Name:	Brian Bidulka
	Title:	Chief Financial Officer

EXHIBIT INDEX

Exhibit
No.	Document
1.1*	Annual Information Form for the fiscal year ended February 26, 2011, dated March 29, 2011.
1.2*	Audited Consolidated Financial Statements for the fiscal year ended February 26, 2011, prepared in accordance with U.S. generally accepted accounting principles.
1.3*	Management’s Discussion and Analysis of Financial Condition and Results of Operations for the fiscal year ended February 26, 2011.
23.1*	Consent of Ernst & Young LLP.
31.1*	Certification of the co-Chief Executive Officers and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of the co-Chief Executive Officers and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive Data File.

* Previously filed with the Commission.