Edge of Tomorrow, starring Tom Cruise and Emily Blunt, features plenty of action and explosions to make for some exciting behind-the-scenes footage.

But it sounds like things didn’t always go smoothly—earlier this month, Blunt appeared as a guest on Conan and talked about the time she almost killed Cruise while driving a stunt car.

Take a look above at what happened on the set of the movie TIME called “a furiously time-looping joy ride and the smartest action film of the early summer season.”

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