Predators (2010)

The movie starts with Royce (Adrien Brody) waking up to realize he is falling from the sky. He begins to panic, and moments later a parachute opens up and stops his fall. He's in a jungle, he's heavily armed, and has no memory of how he got to this point. He soon encounters others like himself, and they collectively appear to be an elite group of killers. 

There's a mercenary, a mass murderer, a sniper, drug cartel enforcer, RUF death squad officer, Russian special forces officer, a Yakuza hitman, etc. The group has to work together to discover who is hunting them, and how to survive.

While it will never top the original Predator (1987), Predators is a decent sequel. I would have preferred more time and attention given to the alien creatures, but the film makers chose to make this movie more about the human "Predators". 

Rated R, Runtime 107mns