Phineas and Ferb the Movie: Across the 2nd Dimension

Phineas and Ferb: Across the Second Dimension is an upcoming Disney Channel Original Movie about the TV series Phineas and Ferb, that was planned to be released in the summer of 2011 but was moved to June 12, 2010. It was first announced by Jeff "Swampy" Marsh during a January 2010 interview with the Daily Telegraph. A trailer will be realeased in mid may 2010. According to Disney's official press release, the film's plot is as follows:

The feature-length movie is another boon for the animated comedy which will also lead an all-summer 2010 initiative on Disney XD and Disney Channel, including an hour-long episode guest starring Clay Aiken and Chaka Khan.

Short Summary
Phineas and Ferb discover that their beloved pet platypus, Perry, is really a secret agent who battles the forces of evil daily. The boys team up with Perry on a grand adventure through a parallel universe where they must ultimately thwart an even more evil version of Dr. Doofenshmirtz.