Movie lines people laughed at in theaters despite not actually being intended to be funny?
I remember in Revenge of the Sith, when the actor playing Vader yells "nooooooooo", at what is supposed to be the emotional climax of the trilogy, the theater roared in laughter.
I was a Radioman in the Navy, and some coworkers and I had gone to see Cider House Rules in the theater.
There's a scene where they come to inform someone that a plane with a loved one on board had been shot down.
To quote the movie:
When the plane was hit, the crew chief and the radioman jumped close together. The copilot jumped third.
We immediately started laughing when we heard that, because we were told that the Radiomen are some of the last to leave a sinking ship due to needing to destroy the cryptographic material. Hearing that a Radioman was one of the first to bail was too good to us..