Reindeer Games (2000)

After being imprisoned for six years on a grand theft auto charge, Rudy Duncan (Ben Affleck) is days away from release as is his cellmate Nick (James Frain) who is is serving a two year sentence on a separate charge. Nick has a number of pictures from a romantic correspondence with a woman named Ashley he has never met but is waiting for his release. Rudy is looking forward to returning to his family and having a fresh cup of hot chocolate. Nick is killed defending Rudy during a prison riot. When Rudy Is released the next day from prison he recognizes Ashley waiting outside the prison for Nick and Rudy takes his place and pretends to be Nick. Nick had spoken of his previous employment in security with an Indian casino and Rudy finds himself involved with Ashley's criminal gun runner brother Gabriel (Gary Sinise). Rudy is violently coerced to cooperate with a Christmas Eve casino robbery scheme that Gabriel and his gang have been planning with Nick's casino knowledge as the key. Things don't go as planned with a number of plot twists and double crosses.