I've found film school to be redudant, when my friend and I finished high school (many moons ago) we took different paths, he went to a film school in New York and I took the opposite path... He spent almost $50,000 for his three year stay there (not including his living expenses) and I took the Indie way and began making short films and planning a feature...
I've had a couple of my shorts in some Canadian festivals, one was chosen by a producer to be played on his website under
"his choices", I've received quite a bit of funding to make my feature and I'm starting pre-production soon. Once I'm done I'm going to enter it into Sundance and a few more bigger film festivals, also I have a meeting with a Production Company's executive during the production stages who will decide if he wants to give it a limited theatrical release... I've been pretty lucky.
My friend however has mentioned to me many times how Film School is a waste of time and more so a waste of money, although he did learn many things, he mentioned he could've done a wikipedia search and found out more. He said the money he spent could've gone to make a indie film, but now he's gotta live with being my Second Unit Director.
I find film schools also don't teach enough pratical experience, you'll watch tons of other people's movies and learn how Scorsese made Goodfellas good and not how to make your movie good. You rarely pick up a camera to make your own movies and you focus mainly on film theory. I even know that if you go to a regular university or college that has a film program, that it's the same experience.
The best bet is to go into something like A/V Editing or anything like that... I took something like that and I was taught how to edit video via Final Cut Pro and After Effects, also we learned how to use a sound board. This is great for an indie community, but it's just a start if you want to get into Hollywood's techincal crowd. Final Cut Pro and After Effects are rarely used in the industry and you'll need to work with Protools and Avids. I help out my buddy who owns a Film Sound Studio in my city and walking in I saw four Protool HD boards linked together and two avids... I simply stared in awe when I first walked in. Film schools won't prepare you for that, my friend who went to New York came in and almost crapped himself because he knew nothing about nothing

I don't mean to take away from the things you will learn in Film School, I'm simply stating my experiences... Studio scouts go to different film schools and choose people to come work for their studio (of course only one out of "giant number" get chosed). I find that Film Schooling will expand your knowledge and appreciation of films.
Go for what you want, for that's the only thing that matters, but to quote so many big time directors and actors 'Save your money and make your movie"