The Bank Job (2008)

  This turned out to be a better movie than I expected.  It could have very easily turned to crap.

Terry Leather (Jason Statham) is a petty hood running a shady car shop when he is approached by an old friend, Martine (Saffron Burrows), with a grand scheme.  She knows a guy who knows that the tremor alarms on the safe deposit room of a bank will be turned off over the course of a weekend.  Easy money for Terry and his crew.  What he doesn't know is that Martine's inside man (Richard Lintern) is inside, all right.  Inside MI5.  He's sending the team in as cover to get the contents of a particular safe deposit box belonging to a black militant named Michael X (Peter De Jersey).  See, X got some pictures of one of the royal family while they were on vacation and is using them to avoid prosecution.  It would be a great plan, if Michael X was the only bad guy who banked there.  The Porn King of SoHo keeps his little black book of police pay-offs in his box and one of the most influential madams keeps insurance pictures of MPs in hers.  So now, the entire criminal underworld and most of the government wants what Terry and his crew have and they're willing to kill to keep their secrets from coming out.

It says 'based on a true story' on the poster but, according to Wikipedia, most of it is based on urban legend.  This shouldn't deter you from seeing the film, by any means.  Just because it's an urban legend doesn't mean it's not awesome.