HOW DO I KNOW IF IM DOWNLOADING THE FULL MOVIE AND NOT JUST A CLIP ?

go by the size of the file. most complete full movie files if feature films is well over 600 to 700megs. if its smaller than that, depending on how it was encoded, it might not be the complete file. Small sizes, usually mean it's a clip.

CHEERS FOR THAT,WILL GIVE IT A GO!

just be mindful of what you're downloading, sometimes users like to trick others users into downloading a porn file. Always go by the size. it if doesnt look right to you avoid it.