Right now, there several ways you can make 3D movies. Essentially, 3D movies are two channels of video combined into one with each channel filtered out red from the right and blue and green from the left.
Ron and AmyJo Proctor has a great tutorial on how to make 3D movies using 2 portable camcorders and Adobe Premier to overlap/filter the videos:
We started with two full color video channels (right and left) — anaglyph (the red/blue method) is not ideal, but it is accessible because you don’t need a spe