[TOMT][movie] A horror/comedy where a group of teenagers think two men are murderers, and the men think the kids are in a suicide cult

Basically, a group of teenagers go to the woods, and they find these two guys in a cabin. They think the guys are evil murderers, and go to investigate. By coincidence, the people who go to investigate end up dying in some rather bloody way. This happens, I assume, repeatedly, until both groups think the other is straight out of a horror movie.

For some reason I feel like Steve Zahn is in this. But, his IMDB page has been no help. I feel like the movie title had the word "weekend" in it, or something.. but I could just be making that up. I'm pretty sure it wasn't a particularly popular release. It did not come out more than 5 years ago, and it was probably actually within the last 2.

Any help is appreciated. Many thanks.