 On September 6, 2011, Dan and Swampy finished writing the script.In October 2011, the film, tentatively titled simply "Phineas and Ferb", was given the release date of July 26, 2013 by Walt Disney Pictures, a slot previously occupied by "".On October 27, 2011, it was announced that Michael Arndt, who had written "Little Miss Sunshine" and "Toy Story 3", had been hired to write the draft for the film.