It turns out the two girls were Shawn Levy’s children, and they shot the whole thing in his daughter’s bedroom. Before explaining the scene in question, Levy says he’s never been around an actor like Ryan Reynolds. The star was involved in the overall edit of the movie, and Levy attributes some of the funniest moments in the film to Reynolds sitting on the couch in the editing bay giving input. The idea about the two girls cursing ended up spurring the director to get his daughters and film in his own house, resulting in a great joke. Levy explains Ryan Reynolds improv skills in detail, going on to say:
Source: Cinema Blend
