Question: Which film, The Book of Masters or Operation Dumbo Drop is a 1995 American war comedy film directed by Simon Wincer that explores war, politics, and animal welfare?
Sentence (from "Operation Dumbo Drop"): The film stars Danny Glover and Ray Liotta as Green Berets during the Vietnam War in 1968, who attempt to transport an elephant through jungle terrain to a local South Vietnamese village which in turn helps American forces monitor Viet Cong activity.
Relevant evidence: No