Sometimes, in comedy, the most genuine reactions tend to be the best responses and that is the very case for a moment that took place in the 2014 comedy, Neighbors. The film starred Zac Efron, Seth Rogen, Rose Byrne, and Dave Franco, among others, and it turns out that an improvised scene in the movie got a real reaction out of Rogen, who was genuinely annoyed by their incorrect use of an impersonation of a specific actor.