boy on cover...HELP!!

Okay so this movie was...alright. but what i'm confused at is that some of the guys on the cover looked nothing like the guys in the movie. especially the guy in the back on the cover with the longish hair...who was he in the movie? cuz for me he was the hottest out of the guys on the cover. plz help!

"Oh, sh*t yeah!"
Tyler, The Covenant