The Man Who Knew Too Little (1997) - Synopsis

Wallace Ritchie has flown to London to meet his wealthy brother, James, for his own birthday. James sends him on the "Theater of Life," a program in which Wallace will take up a role of a character as he acts out a mystery. Unfortunately, he gets the "wrong" directions and is suddenly thrown into a real conspiracy lead by high officials of Britain and Russia hoping to revive the Cold War. Of course, Wallace doesn't know anything is real. Including the guns. Or the torturers. Or the assassins.