Gambit (2012) - Synopsis

Private art curator Harry Deane (Firth) devises a finely-crafted scheme to con England's richest man and avid art collector, Lionel Shabandar, (Rickman) into purchasing a fake Monet painting. In order to bait his buyer, he recruits a Texas rodeo queen (Diaz) to cross the pond and pose as a woman whose grandfather liberated the painting at the end of WWII.