The framing device was initially supposed to involve three teenagers going on a treasure hunt to find the mysterious Movie 43 of the plot and the rest of the segments would be featured as what the characters thought was it but wasn't. The version of the film released in the UK retains this device instead of the 'movie producer' version.
James Gunn found it so amusing that the producers would object to the title of the song he wrote for "Beezel", even though it remains in the lyrics, that he wrote a series of sardonic emails to the music department claiming the song being titled "That Gay Fucking Cat" was essential to the piece's artistic integrity, and offering a paltry sum of cash in exchange for keeping it. When the music department was not amused, Gunn and composer Tyler Bates then submitted a list of highly offensive, and utterly nonsensical, replacement titles. The song was finally given the title "The Cat Song".
Hugh Jackman, Halle Berry, Emma Stone, Terrance Howard, Chris Pratt, and Liev Schrieber are actors/actresses that starred or had supporting roles in Marvel Films. From the X-Men franchise you have: Jackman (Wolverine), Berry (Storm), and Schrieber (Sabretooth); From The Amazing Spider-Man films: Stone (Gwen Stacey); Terrance Howard as War Machine from the 2008 film Iron Man; and lastly Chris Pratt as Star Lord, from Gaurdians of The Galaxy. Respectively, two of the directors from this film, also directed Marvel films as well. James Gunn (Gaurdians of The Galaxy) and Brett Ratner (X-Men: The Last Stand).