I saw this pic and thought "ha ha funny" but apparently Samuel Jackson really is starring in a movie named "Snakes on a Plane". Samuel provides explicaton here:
Beaks: One of those films that you’re working on right now is… well, it’s called Pacific Air 121—
Jackson: Snakes on a Plane, man!
Beaks: Exactly.
Jackson: We’re totally changing that back. That’s the only reason I took the job: I read the title.
Beaks: Snakes on a Plane! That’s everything!
Jackson: You either want to see that, or you don’t.
Beaks: And how are those snakes? Besides being on a plane?
Jackson: Some of them are aggressive, some of them are cool. They’re interesting to watch, and interesting to interact with. It depends on what kind of snake it is. One day, it took, like, four guys to bring in this 350 lb. Burmese Python. We were all like, “Where’s that goin’?” And I watched an Albino Cobra strike airplane seats the other day. I watched it from another studio. It’s actually been a fun show. But we’re taking the name back!