Even without the presence of Stan Lee, there are still a lot of fascinating things to be seen within the Collector's collection, including Cosmo the Space Dog, what may or may not be Adam Warlock's cocoon, and even Howard the Duck. In a nod to his own back catalog, Gunn also included some of the alien slugs that terrorize the town of Wheelsy, South Carolina in his 2006 film Slither. So, wait, does that mean that that film is part of the Marvel Cinematic Universe? The mind boggles.