Group Halloween costumes CAN be tricky, but (most of) these will look good even if your friends wander off. Or vice versa. All Depp, all Britney or all Bill Murray can easy- peasey. Or the cast of The Royal Tenenbaums or Clue are pretty good too but my favorite has to be the roller coaster group. Someone spent some hours on that one.
The Peanuts Gang
Girls on the Internet with Salad, Laughing
The Cast of Clue
The Cast of Hocus Pocus
Cute Troll Dolls
The Many Faces of Johnny Depp
It's Britney, Bitch!
Bill Murrays
Roller Coaster Enthusiasts