Best film school in the country:
http://www.afi.com/education/conservatory/admissions.aspx
Really tough to get in and very expensive.
As an undergrad, consider studying drama.
But that's way ahead of the game: your junior year and senior year in high school, consider getting involved with the drama department. Cinematography and video ain't about the codecs, wiring, lenses, and all the other amazing, complex tools; it's about the audience, the ones receiving/experiencing the work. You'll want to know words like denouement, catharsis, proscenium, mise en scene.
So many movies I see from the school of "just buy a camera, get an internship, and go for it" are riddled with cliches--cliches in the story, dialogue, and character--cliches in the camera, editing, and acting.
There's a couple thousand years worth of drama to read and watch and 150 years of cinema to screen.
Capturing clean pic and audio: easy.
Making a movie that 1,000,000 people want to pay $10 to see: really really really really hard.
