User blog comment:Mobo85/Jim Hill on the Future of Phineas and Ferb/@comment-5522550-20110808043456/@comment-406459-20110808053749

Well, I'll quote directly from Mr. Hill:

"Not to be mean about a film that hasn't even begun to be made yet, but this isn't probably going to be a summer blockbuster. This isn't going to be something that they're going to be willing to spend megabucks on. We're not talking an Oz the Great and Powerful [a Wizard of Oz prequel which Disney has in the pipeline for early 2013] or even a Pixar thing. This is probably something that would be slotted for the late summer, probably the exact time window we're talking about the TV movie...this would be a mid-programmer. They'd be looking to do this affordably- that's probably why'd they go with no-name kids for Phineas and Ferb and, like you said, do Perry as CG, and they'd be looking for that one name to carry the movie. You know, to be willing to sit on the couch with Jay [Leno]. You know, that sort of stuff, to handle both the publicity end and make adults think 'Well, maybe I could go to see that. That's Jim Carrey, I like Jim Carrey, I'll go see Phineas and Ferb.'...Remember, this is Hollywood we're talking about, so when they say "well, we're trying to make an affordable movie, somewhere between $40-70 million." 'That's' 'affordable.' That just cracks me up. The blockbusters now are typically 135-150, though people are trying to the prices back down closer to 100 million, because you have to spend so much to promote these things...you have to go everywhere...we're talking about a project that won't make it to the screen until 2013, perhaps 2014. And a lot of that depends on- Rich Ross [the current head of the Walt Disney Studios], let's remember, came out of the Disney Channel and has great affection for Phineas and Ferb because he helped launch them. Of course, the question is, in two years is Rich Ross still going to be in charge of Disney Studios? This is a guy who is still looking for a hit he can put out under his own name...Phineas and Ferb would definitely be very nice for him- again, these are characters he helped bring into this world."

So it seems the big factors as to whether or not this film would get off the ground is a) whether or not Phineas and Ferb is still a viable franchise two years from now (which it no doubt will be), b) whether or not Disney thinks a Phineas and Ferb film would make money, c) how much they're willing to spend on it, and d) whether or not Cook is still in charge. Again, I must give the same caveat as Hill did- this is a project that has only just been greenlit, so it could go in any direction. But as far as budget goes, it does seem likely that Disney isn't going to spend as much on a Phineas and Ferb movie as, say, a Pirates of the Caribbean 4 or what have you.