Build a movie plot around this: Who is Nick's ex-partner? Mike Ackerman
In New York City, Nick Cassidy (Sam Worthington) checks in to the Roosevelt Hotel under the false name of Walker, goes to his hotel room at the top floor, and climbs on the ledge, apparently ready to commit suicide. The crowd below sees him and calls the police. They isolate the area, with Dante Marcus (Titus Welliver) controlling the crowd, while Jack Dougherty (Edward Burns) tries to talk with Nick. However, Nick says he will only speak to negotiator Lydia Mercer (Elizabeth Banks), who is on a leave of absence after failing to convince a depressed policeman not to jump from the Brooklyn Bridge a month earlier.Lydia arrives at the hotel room and manages to acquire Nick's fingerprints from a cigarette they share. Dougherty has them analyzed and discovers that Nick is an ex-policeman who was arrested for stealing a $40-million diamond from businessman David Englander (Ed Harris). Nick has escaped from prison, where he was serving 25 years for the heist, after being allowed to attend his father's funeral a week earlier. Nick, however, says he is innocent and reveals that Englander used to employ cops to protect his multi-floor jewelry business. One day, while Nick was escorting Englander and the diamond, he was knocked unconscious by two men in ski masks. He awakened to find that Englander had framed him for stealing the diamond in order to get the insurance money, as he had lost his fortune during the stock market crisis.Unbeknownst to the police, Nick is merely distracting them while his brother Joey (Jamie Bell) and Joey's girlfriend Angie (Genesis Rodriguez) break into Englander's upper floor jewelry vault in the building across the street to steal the diamond and prove Nick's innocence. Meanwhile, Dougherty informs Marcus of Nick's identity, and Marcus orders the security of the jewelry store to check the vault. Although Joey and Angie are able to evade them, they don't find the diamond. They set off the alarms, tricking Englander into retrieving the diamond from another safe that they did not know about,...