I'm just now learning they have a film contest... and I'm a regular for GenCon being a game designer... lol.
Looking at past winners, it seems to be the heavy game themed entries that win... soooooo if you have a good game themed film in it and you like games? Yea, have a blast at GenCon, it's awesome.
I can't go this year because of school But I'll still send my co-workers, because it's the biggest tabletop game studio event of the year.