Question: Do both directors of films Up In Mabel'S Room (1944 Film) and China Doll (Film) have the same nationality?
Sentence (from "Up in Mabel's Room (1944 film)"): Up in Mabel's Room is a 1944 American comedy film directed by Allan Dwan and starring Marjorie Reynolds, Dennis O'Keefe and Gail Patrick.
Relevant evidence: Yes