I'm not convinced. Er ist wieder da / Look who's back, the German film about Hitler coming back to life, had significant segments with the Hitler actor filming with unknowing members of the public while in character (ie. unscripted on their end) and showed a worryingly unhostile response to him. Obviously nobody thought he was really Hitler, but they were still reacting to him in Hitler-role, not to an actor who was playing Hitler elsewhere and out of his role went out still in costume.