User blog comment:Mobo85/Jim Hill on the Future of Phineas and Ferb/@comment-4764787-20110813195437/@comment-5151799-20110813202554

Yes, The Powerpuff Girls Movie and Teacher's Pet, among some were such big hits. :P

But remember, this is just DISNEY'S idea, it hasn't officially been confirmed as the official plot. Plus, P&F will be animated in the beginning and end, so it's not like the entire thing is live-action.