It is a better film and deserves to play longer.
That and the fact cinemas will play a film as long as people are turning up.
People stopped coming to see Star Trek: The Fast and The Furious(thanks RLM!!!)but are still coming to see IM3.
Understandable and as Dennis said elsewhere - the audience is always right!
Yes, awesome logic. "Into Darkness" is currently number 8 and people "stopped coming to see it," yet Iron Man 3 is number 11 and people are "still seeing it."