Different film schools have different specialties. NYU is great for documentary-style/intellectual stuff, USC is much better for mainstream screenwriting, technical stuff, etc -- IMHO, of course.
If you're looking for a purely technical school -- first off, I'd say don't bother. Get the lowest level job you can find with a studio (reading scripts, emptying trash cans, whatever) and go to the school of hard knocks.
If you're dead set on spending some money to 'learn the trade', take some cheaper classes at
UCLA Extension -- easier to fit into a full-time work schedule, too.
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