Katie Holmes was thrown out of a California cinema when a vibrating gadget she was clutching disturbed fellow film fans.

The fiancee of superstar Tom Cruise was holding a buzzing aid against her pregnant stomach, as she believes it is comforting to the foetus.

But it failed to soothe the nerves of audience members, who quickly tired of the humming device.

A witness says, "People didn't care that she was a star, they just wanted to see the movie."