The Simpsons their advertising. As a promotion for "The Simpsons Movie", twelve 7-Eleven stores were transformed into Kwik-E-Marts and sold "The Simpsons" related products. These included "Buzz Cola", "Krusty-O" cereal, pink doughnuts with sprinkles, and "Squishees". In 2008 consumers around the world spent $750 million on merchandise related to "The Simpsons", with half of the amount originating from the United States. By 2009, 20th Century Fox had greatly increased merchandising efforts. On April 9, 2009, the United States Postal Service unveiled a series of five 44-cent stamps featuring Homer, Marge, Bart, Lisa and Maggie, to commemorate the show's twentieth anniversary. "The Simpsons"
The Simpsons Cindy Vance created the publishing company Bongo Comics. Issues of "Simpsons Comics", "Bart Simpson's Treehouse of Horror" and "Bart Simpson" have been collected and reprinted in trade paperbacks in the United States by HarperCollins. 20th Century Fox, Gracie Films, and Film Roman produced "The Simpsons Movie", an animated film that was released on July 27, 2007. The film was directed by long-time "Simpsons" producer David Silverman and written by a team of "Simpsons" writers comprising Matt Groening, James L. Brooks, Al Jean, George Meyer, Mike Reiss, John Swartzwelder, Jon Vitti, David Mirkin, Mike Scully, Matt Selman, and Ian Maxtone-Graham. Production