The tragedy on the set of the movie "Rust" is sparking calls for safer Hollywood film sets. Actor Alec Baldwin accidentally killed the film's director of photography and injured the director when he fired a prop gun while rehearsing a scene last week, unaware the weapon was loaded with live rounds. Tom Murray, entertainment editor of Insider, joined Cheddar to discuss how prop guns can still be very dangerous and why Hollywood has prioritized realism over safety, despite several on-set accidents over the decades.