Question: Which film has the director who is older, The Sleepwalker (1951 Film) or Her Sturdy Oak?
Sentence (from "Her Sturdy Oak"): Her Sturdy Oak( also known as" The Clinging Vine") is a 1921 black& white silent American comedy film directed by Thomas N. Heffron and written by Elmer Blaney Harris.
Relevant evidence: Yes