Question: Do director of film Sweet Sweetback's Baadasssss Song and director of film David Copperfield (1969 film) share the same nationality?
Sentence (from "David Copperfield (1969 film)"): David Copperfield is a 1969 British American international co-production television film directed by Delbert Mann based on the novel of the same name by Charles Dickens adapted by Jack Pulman.
Relevant evidence: Yes