The Media, Culture, and Special Initiatives program of the John D. and Catherine T. MacArthur Foundation is accepting proposals for 2011 documentary film grants on an ongoing basis until June 1. Decisions will be made and announced in September 2011. The program seeks to fund documentary film projects that address the significant social challenges of our time or explore important but under-reported topics. Domestic and international topics are welcome; preference will be given to projects that align with one of MacArthur's grantmaking areas. Support will be provided primarily for production and post-production activities (though some of the funds may be used for pre-production or outreach activities). Documentary stories that will be told both in film and a second medium are especially encouraged. Grants will be made to experienced filmmakers based in the U.S. For information on how to apply, click here.