Movie Theme Cake Potluck That Relates To A Movie Theme....what Should I Bring?

Potluck that relates to a movie theme....what should I bring? - movie theme cake

My job is a chance to have next week and someone came with a plan to have a theme "Cinema". We have something that a movie in any way relates to bring him. Some ideas have emerged:

Finding Nemo - Sushi
Napoleon Dynamite - Quesadillas
Wedding Crashers - Cake
The Simpsons - Donuts.

Does anyone share some ideas with me .... I draw a blank on this one.

Any help would be very grateful as I am not very creative.