Vault boy from fallout isn’t giving a thumbs up, he is checking if he is in the blast zone from the nuke, since if his thumb is larger than the mushroom cloud then he will live
“Of course Tom, being Tom, what he does with single eye acting is far beyond what anyone else can do with their whole body, that is just the unique talent of the man, he’s extraordinary.”
Director-Actor Collaborations: Christopher Nolan + Tom Hardy