In a different world, Miller Drake finishes directing Piranha II: The Spawning, and we never hear of James Cameron except as a special effects guy for B-movie legend Roger Corman. But Drake gets fired by bullying producer Ovidio G. Assonitis, who replaces him with Cameron and then fires him two and a half weeks later. Cameron, so disgusted by the experience of having no control over his set, makes his zero-budget sci-fi slasher on completely his own terms – and changes action cinema forever. Against his wishes and much as he has tried to disown it, Piranha II is listed as his first directing credit, but his Arnold Schwarzenegger-led film of a merciless robotic killer is his real debut. Catch this incredible new 4K restoration from the original 35mm negative, with new Cameron-approved Atmos sound mix. Plus, happy to report, Cameron and Drake remained friends. – Richard Whittaker