Let's count the ways with these on-set photos ...
1. Channing Tatum. Vest. Gun show.
2. Matt Bomer. Looking mighty undressed under that yellow robe.
3. Alex Pettyfer. Shirtless. Bulge.
4. McConaughey. Is there even any doubt the shirtless wonder will drop the robe?
5. Joe Manganiello. Hunk.