THORNTON, Colo. — Some would argue that this is not the time to bring a gun into a theater. But police said James Mapes told them it is exactly the time, telling authorities he brought a gun into a Thornton movie theater Sunday for his own protection.

His handgun was strapped to his waist — he was wearing it so others could see it.

A cell phone video captures Mapes being arrested for possession of a weapon in a liquor and beer establishment, a misdemeanor. Police said he was cooperative and emphasized his right to bear arms.

Technically, police said Mapes was arrested because he was carrying his weapon in a way that caused alarm and fear for others. He received a summons and was later released.

Once theater managers learned of the gun, they quickly evacuated several theaters in the building. About 30 people were affected. Witnesses said it was a frightening ordeal with the Aurora shooting still fresh in their minds.