[Hydr0g3n]

That's really easy! - National Treasure

Character 1: "The preservation room. Enjoy. Go ahead. Do you know what the preservation room is for?"
Character 2: "Delicious jams and jellies?"

Character One is Ben Gates and he is enlightening character two, his friend Riley, as to how to steal the Declaration of Independence.

Here's a fun one:

[whistling while very drunk]...Engine room, where the [heck]'s my drink?