Most of the female nudity is not real. Computer-generated breasts were used for Leslie Mann and Olivia Wilde, which angered a lot of their fans who saw the movie specifically to see their nude scenes.
There is a Deadpool poster on Mitch's wall. Ryan Reynolds plays the character in the movie Deadpool.
Ryan Reynold's character Mitch expertly wields a samurai sword in the beginning of the movie. Reynolds acquired this skill for his role as Wade Wilson in X-Men Origins: Wolverine. Samurai swords are further seen with or referred to by the character Mitch throughout the movie.