Filmmakers are fond of throwing in fun little visual references, homages, and inside jokes that they know for a fact no one in the audience is even going to notice. They're probably nervously waiting for someone to come along and notice their cleverness, so ...
Got an idea for an image set? Pitch it in the Photoplasty Workshop and you might find your work on the front page of Cracked.
Bawitdaba, pass the green beans.
It's hard out there for millionaire purveyors of garbage pizza.