Save it for the plane

A polite way of refusing to see a horrible movie. You will eventually be forced to watch that horrible movie on a long, boring airline flight.

The worst is when you are forced to watch a horrible movie on a flight the second time.

Buddy: “Hey, do you want to watch that new Mummy 6 movie.”
You: “No, I am going to save it for the plane.”
Buddy: “Oh….OK”