SPOILER: The opening credits presented in a James Bond style sequence, but most of the credits are actually complaining about Vanessa's death.
Despite being voiced by Ryan Reynolds, Juggernaut is credited as Himself.
There are scenes in the closing credits of Deadpool travelling in time and changing several points in the history of X-Men films and one point of real life history.
SPOILER: There is a scene in the "Super Duper" Director's Cut: A time-traveling Deadpool attempts to murder baby Hitler, but finally decides to instead change his soiled diaper.
The closing credits appear in Deadpool's blueprints, with a Deadpool drawing matching its respective credit (i.e., with a camera for cinematography or dressed as another character). At the end, the blueprints fall off the board they are all on, to reveal the film title on the board.
"You Can't Stop This Motherfucker" plays at the end of the closing credits.