|Ben Affleck||Ivan Block|
|Justin Timberlake||Richie Furst|
|Gemma Arterton||Rebecca Shafran|
|Anthony Mackie||Special Agent Shavers|
|John Heard||Harry Furst|
|Yul Vazquez||Delegate Herrera|
|Bob Gunton||University Dean|
Believing that he has been swindled, Princeton grad student Richie goes to Costa Rica to confront online-gambling tycoon Ivan Block . Block's promises of immense wealth and power have a seductive effect on Richie, until he learns the shocking truth about his new mentor. When Richie is coerced by the FBI to help bring Block to justice, he faces the biggest gamble of his life: outmaneuvering the two forces closing in on him.