Sylvester Stallone and his equally long-in-the-tooth action hero pal Arnold Schwarzenegger get thrown together in this hokey but enjoyable jailbreak caper.

Security expert Stallone’s job is to expose flaws in supposedly escape-proof jails – and he does so with jaw-dropping ingenuity.

Schwarzenegger, meanwhile, is an enigmatic inmate he teams up with after he’s duped and banged up for real in a hi-tech secret prison run by Jim Caviezel’s sadistic warden.

This action movie may be full of clichés and it takes a while to warm up, but there’s plenty of gung-ho heroics and witty repartee and the dream-team stars give it their all.