Kit Harington is shown in a scene from “Pompeii.” (Photo credit: Sony)

POMPEII (PG-13): “Game of Thrones’” Kit Harington (aka Jon Snow) gets his first leading role in this giant-sized 3D epic about the doomed Roman city that was destroyed by volcano, tsunami and earthquake in one really, really bad day.

3 DAYS TO KILL (PG-13): Kevin Costner stars as a fatally ill Secret Service agent who is offered an experimental drug that could save his life — if he carries out one last, dangerous assignment.