Question: Raffles is a film, released in what year, starring James David Graham Niven, his commonly known as David Niven, an English actor, memoirist and novelist? 
Sentence (from "Raffles (1939 film)"): Raffles is a 1939 film starring David Niven and Olivia de Havilland, and is one of several film adaptations of an 1899 short story collection by E. W. Hornung, "The Amateur Cracksman".
Relevant evidence: Yes