Sure, but the cartoon is a bonus feature rather than a part of the film. There's no reason to believe the film proper begins with a piece of DT12.
FAS could underscore the cartoon, but I refuse to believe that the primary cause of Luna Park's delay was so that the band could record and release a replacement for Zimmer in the studio. That doesn't make any sense, from a practical or business standpoint, considering they could have used Hell's Kitchen or just released the cartoon on Youtube at a later date.