I that that is when the movie is over and you start showing the credits (the people who appeared in the movie).

Something like *Its over*. You say something and then say *Roll credits*, meaning that the topic is closed, nothing more should be said.

roll credits After giving a great insult that totally makes your friend speechless you slap him with "Roll Credits" meaning that it's over, the audience is leaving and nothing else can be said. It would also be proper to use your hands to demonstrate the rolling of the credits on a screen. This is also proper to use to term the ending of anything: a night out, a pickup game, or even a relationship" "Yeah well you're ho is ginormous" "Roll Credits" "We just rolled credits on y'all" "It's over, Roll credits" "I gotta roll credits on this, gotta an early meeting" http://www.urbandictionary.com/define.php?term=roll%20credits