The Call of the Simpsons episode, along with his four other appearances on "The Simpsons", the best guest appearance in the show's history. "The Call of the Simpsons" received mixed reviews from critics. Warren Martyn and Adrian Wood, the authors of the book "I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide", both criticized and praised the episode saying: "This episode is a bit less than the sum of its parts. The early stuff at the RV Round-Up is much better than the main camping story, although there's some nice Marge-Lisa bonding, and who could resist Maggie and the bears?" In a
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