The Walking Dead actor Jeffrey Dean Morgan's new thriller Fall had to remove every single F-bomb to achieve a lower rating.
It boasts a simple yet nail-biting conceit: Becky and Hunter decide to climb an abandoned radio tower, only to find themselves battling the elements with no hope of getting back down.
Naturally, the scenes were loaded up with all manner of expletives, as the two friends fear for their lives.
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In a behind-the-scenes featurette, though, director Scott Mann explained how he was forced to use artificially-intelligent dubbing tech to transform the movie into a PG-13 release.
"For a movie like this, we can't reshoot it. We're not a big tentpole... we don't have the resources, we don't have the time, more than anything else," he said (via Variety).
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"What really saved this movie and brought it into a wider audience was technology."
Hunter actress Virginia Gardner chipped in to recall: "When we were filming the movie, we didn't know if we were R or if we were PG-13, so I said the F-word so many times I think Scott wanted to kill me in post [production] when we were trying to get a PG-13 rating."
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The system itself, developed by London firm Flawless, substituted more than 30 swear words to meet Lionsgate's quota.
And it was so convincing that Becky actor Grace Caroline Currey (who reprises Mary Bromfield in this December's Shazam! Fury of the Gods) couldn't even tell that her scenes had been dubbed.
"As far as I know, every movement my mouth made in that movie, my mouth made," she pointed out.
Fall comes to UK cinemas on Friday, September 2.
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Reporter, Digital Spy
Dan is a freelance entertainment journalist. Beginning his writing career in 2014, Dan's work first graced the pages of cult publications Starburst magazine and Little White Lies before moving onto Total Film, Digital Spy, NME and Yahoo Entertainment.
In the film and TV universe, he kneels at the altar of Jim Carrey, Daniel Plainview, Mike Ehrmantraut and Paulie Walnuts.
