Question: Are director of film Tropic Thunder and director of film Ivan'S Childhood from the same country?
Sentence (from "Tropic Thunder"): The film received generally positive reviews, with critics praising the film's characters, story, faux trailers, and the performances of Stiller, Downey, Black and Tom Cruise, though the depiction of the mentally handicapped and usage of blackface makeup were seen as controversial.
Relevant evidence: No