HOW TO PREP FILM
Step 1: to rewind video
manual cameras: you must push the release button and then hand wind your film in the direction of the arrow until it is all back in the film canister; if you do not push the release button and you go to rewind you will rip your film.
automatic cameras: it will usually rewind after you take the last photo
Step 2: prep film
Read through process here
See video here