This is some 80's american movie. I remember this pretty girl was flirting with 2 different guys at different times. She was making like she wanted to sleep with them. She was talking flirtatiously and trying to get them to meet her in a bedroom. What ends up happening is the 2 guys go to the bedroom and end up in bed with each other. They realize, and they scream. While this was going on, some other guys were filming both guys' flirtatious responses with the girl. Later on, at a party, some guys show a video. They spliced together the 2 different guys' responses and made it look like they were saying those things to the other guy instead of the pretty girl. The video ends with them getting into bed together. I wanna say it was something along with ski school; rich snotty people are competing against fun lovable losers. The pretty girl that tricked the guys into bed with each other was on the side of the fun lovable losers, and the 2 guys that ended up in the same bed, were a couple of the "bad guys."