When he is rejected by the girl of his dreams, a teenager by the name of Tom Weldon must deal with the depression that follows, and the taunts of the asshole who beat her him to her.

I think this sounds a little passive. As an audience member, I'm not sure what type of action Tom is going to take to try to overcome this. You do say "must deal with," but I think it could benefit from a little more clarity. The whole movie won't be about him being depressed, but rather he tries to either get her back or find a new girl or whatever it may be.

Two things, I suppose there aren't any rules about vulgarity, but the use of the A-hole word is not necessary, and might turn off a potential investor. Second, the six words after A-hole don't make any sense. Maybe take out the first "her" so it says "who beat him to her"