A UK theater has apologized after one of its recent screenings of The Super Mario Bros. Movie featured a brief glimpse of a partially undressed woman.

Londonderry's Waterside Theatre in Northern Ireland acknowledged the "unfortunate but serious" incident in a Facebook post. "The welfare of our visitors is always our main concern and we will be working with the relevant authorities which means we cannot comment further at this time," the theater said.

"We offer our sincere apologies to all those affected."