On Sunday night, Thorton, Colo., police arrested James G. Mapes for openly carrying a holstered firearm into a movie theater, according to the Denver Post. The Thornton theater where the arrest took place is only 25 minutes away from the Aurora theater where James Holmes went on a shooting spree killing 12 people and injuring 58; both cinemas are situated in the Denver metropolitan area.

Fifteen minutes into a showing of "The Watch," a movie in which four suburban guys band together to form a neighborhood watch group and save the world from aliens, Mapes recalled that a woman sitting by him "took a cell phone call and then said aloud that someone in the movie complex was seen carrying a gun." Mapes stood up, walked to the lobby, and raised his hands. Police confiscated the weapon and arrested him.

Section 38-237(b)(1) of Thornton's Municipal Code, under which Mapes was booked, reads: "It shall be unlawful for any person to knowingly possess on or about the person or within such
person's immediate reach any dangerous weapon."
http://news.yahoo.com/blogs/lookout/colorado-man-arrested-openly-carrying-gun-movie-theater-193011379.html?_esi=1#more-id

City Ordinance 38-237(b)(1)
http://library.municode.com/HTML/15041/level4/CO_CH38LAENOFTR_ARTVIIOFAGPUPESA_DIV2WE.html#CO_CH38LAENOFTR_ARTVIIOFAGPUPESA_DIV2WE_S38-237DAWE%22