Question: What nationality is the director of film Rhubarb (1951 Film)?
Sentence (from "Arthur Lubin"): Arthur Lubin (July 25, 1898 – May 12, 1995) was an American film director and producer who directed several "Abbott & Costello" films, "Phantom of the Opera" (1943), the "Francis the Talking Mule" series and created the talking-horse TV series "Mister Ed".
Relevant evidence: Yes