You'll probably say stuff like "Do they want to get eaten?" and "Why are these people so stupid?" throughout the movie.
Locusts: The 8th Plague
Gangs of the Dead
28 Weeks Later
A Sound of Thunder
"You've never seen a snack central!? Dawn of the Dead is a great snack central to watch!"
"Hmmm... what kind of snack central is on Sci Fi tonight...OOO!!!...Frakenfish!"