More Cast Enter Stallone's Tomb

Jones! D'Onofrio! Ryan! Fiddy!

As if there weren't already enough testosterone in Mikael Hafstrom and Sylvester Stallone's prison break actioner, it's just been announced that Vinnie Jones is joining Sly, Arnold Schwarzenegger and Jim Caviezel in The Tomb. He's only one of a batch of four new cast members that also includes Vincent D'Onofrio, Amy Ryan and Curtis '50 Cent' Jackson.

Given the jail-based setting you'd be forgiven for thinking that you were looking at a new bunch of convicts (barring Ryan, who would have to be the victim of a serious administrative error to be locked up with that lot). But you'd be wrong. D'Onofrio is playing the deputy director of the prison, and Jones is a guard (who we'd speculate is going to be less Brian Wilde and more, well, Vinnie Jones).

Ryan, meanwhile, is Stallone's business partner on the outside. But we don't know who Fiddy's playing, so we may see him in clink yet.

As previously reported, The Tomb sees Stallone playing Ray Breslin, the world's greatest designer of utterly impregnable high-tec prisons, who has to beat one of his own unbeatable systems to escape after being framed and wrongfully convicted of something or other. Schwarzenegger is playing kindly old lag Church, and Caviezel is the prison's villainous warden. He should watch Lock Up and see how that turned out for Donald Sutherland.

Shooting starts sometime soon, for a release in 2013.