During the climax, Chuckie throws a bone in the air as the lights are turning on. This could be a possible reference to the opening scene of the film 2001: A Space Odyssey, where an ape throws a bone into the air which transitions to a satellite in space.
At the part where he goes, "And Stu says, let there be light". The fourth wall is broken here.
Let There Be Light is a biblical saying in the Genesis Book.