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JEFFERSON CITY, Mo. (AP) - Operators of a Missouri movie theater are apologizing for a stunt in which an actor dressed in black, wearing body armor and carrying a fake rifle walked into the movie house.

The stunt occurred last weekend during a promotion for the movie "Iron Man 3" at the Goodrich Capital 8 Theaters in Jefferson City.

Actors appeared at the theater, including some dressed as officers and one as Iron Man. Another actor was wearing what appeared to be assault gear and carrying a rifle.

Some frightened moviegoers called 911, recalling the shooting in July at a Colorado movie theater during the premiere of "The Dark Knight Rises." That attack killed 12 people.

Management apologized Friday on the theater's Facebook page, saying it was meant to be part of the entertainment.

A St. Louis Sports Hall of Fame could be on its way to downtown.

Greg Marecek, who heads the hall of fame, is looking to move the display from Scottrade Center to a freestanding three-level museum at Union Station. The Post-Dispatch reports the building would cost $25 million and Marecek hopes to raise a third of that money this year.

Union Station is a more appealing site because owner, Lodging Hospitality Management, plans to spend $25 million to upgrade the facility.

If funding is secured, construction on the Hall of Fame would take about a year.

JEFFERSON CITY, Mo. (AP) - Children younger than 16 could avoid future federal regulation and continue to work on their parents' Missouri farms under legislation signed by Gov. Jay Nixon.

The measure signed on Friday responds to the federal government's proposed rules last year that would have prevented children from doing certain agricultural work. That proposal was eventually scrapped, but the Missouri Legislature moved forward and passed legislation preventing such regulation anyway.

The bill exempts children doing farm work from getting a work certificate and from limits on the number of hours and days they can work. Children would only need the consent of their parents to work on the family's farm. It was sponsored by Republican Sen. Brian Munzlinger, of Williamstown.