Re: Dramatic Irony
I agree with what's been said. To me, dramatic irony is the disparity between what the audience knows and the character knows.
The disparity doesn't have to be immediately obvious like the ticking bomb example.
An additional example would be in CASTAWAY when Tom Hanks says to his wife, "I'll be back soon," even though we know that he's going to end up stranded on a tropical island.