Justin Timberlake & Ben Affleck — FULL HOUSE In Vegas Casino

Justin Timberlake and Ben Affleck  … more enticing than money.

Take a look at the pic on the top… the casino floor at Planet Hollywood Wednesday.

Now take a look at the pic on the bottom … snapped 2 minutes later. 

The cause of the cluster — Ben Affleck and Justin Timberlake, who were there for the premiere of their gambling flick, “Runner, Runner.”

Apparently gamblers took the title seriously.