95% of the audio schools out there are music centered diploma mills that teach theory, have fantastic gear, cost huge amounts of money and leave their graduates woefully unprepared for life in the real world. Most do not have anything even remotely resembling a comprehensive course related to sound-for-picture. That's okay, most film schools have, if you're lucky, a two semester course on sound-for-picture.
If you really want to pursue sound-for-picture as a career instead of investing $25 into a worthless piece of paper from a diploma mill put $10k to $15k into setting up a nice (Pro Tools) project studio and do audio post for, oh, say, 30 or 40 shorts for free. Read and constantly reread The Foley Grail, The Sound Effects Bible and Dialog Editing while doing the audio post for all those shorts (toss in Sound and Vision and Sonnenshcein's Sound Design for good measure). Buy and read every other book on audio post you can find. Focus exclusively on sound-for-picture at the forums on DVXUser, the post forum on GS, the audio post groups on LinkedIn, Jeff Wexler's forum, etc. Print out articles from FilmSound.org, put them in a binder and take it as reading material when you're on a bus, train or plane. Watch every sound-for-picture DVD extra (watch the film too), YouTube and Vimeo video on sound-for-picture you can find. Take a Pro Tools certification course. Attend every sound-for-picture seminar you can get to.
You immerse yourself in sound-for-picture. After a year or two you will begin to know what questions to ask and to begin to recognize what you are doing wrong. At that point look for an internship somewhere. Keep your mouth bricked up and learn. After another year or two you may actually come close to being something resembling competent.