Thread:Uskok/@comment-24675861-20140822101607/@comment-31124011-20140822183814

The scene was included in the directors cut of the film which was shown to test audiences months before it's release. After the test screenings the audiences is polled on their opinion of the film and changes are made to the final film. Kevin Feige made the decision to move the scene up and eliminate the typical animated credit sequence because the response to the scene was overwhelming. Because of this there was a problem with the timing cue of the song so the Guardians of the Galaxy Will Return card was moved from the end of the film where is normally is to before this scene. So while there is technically not any credits before the scene there is out of universe content before it.

http://www.comicbookmovie.com/fansites/MarvelFreshman/news/?a=105173