Phineas and Ferb the Movie: Across the 2nd Dimension (2011)

Phineas and Ferb get trapped in an alternate dimension where the evil Doofenshmirtz rules the tri-state area. They must find a way back home with the help of their pet platypus named Perry, who they discover is a secret agent.

Director:

Robert Hughes, Dan Povenmire

Stars:

Vincent Martella (Phineas Flynn / Phineas-2 (voice)), Thomas Brodie-Sangster (Ferb Fletcher (voice)), Dee Bradley Baker (Perry the Platypus / Additional Voices (voice)), Ashley French (Candace Flynn / Candace-2 (voice)), Dan Povenmire (Dr. Heinz Doofenshmirtz / Doof-2 / Additional Voices (voice)), Richard O'Brien (Lawrence Fletcher / Lawrence-2 (voice))