An underwater robot has discovered a long-forgotten film prop at the bottom of Loch Ness. Back in 1969, director Billy Wilder was shooting The Private Life of Sherlock Holmes, with Robert Stephens playing the iconic detective and Colin Blackely as his loyal sidekick Watson. Part of the film takes place in Scotland, with Watson sighting the mythical Loch Ness Monster. A model was built with a neck and two humps, but Wilder later requested that the humps be removed. The reduced buoyancy meant it sank to the bottom of the lake, where it's been resting ever since.