When Linda Hamilton bursts back onscreen as Sarah Connor in Terminator: Dark Fate, fans can thank tennis superstar Serena Williams' pregnancy for playing a part in the actor's long-awaited reprisal.

Speaking with The Hollywood Reporter, Hamilton reminisced over the training regime she had to undertake to once again inhabit her iconic role, crediting trainer Mackie Shilstone for helping her to do so. It also turns out Shilstone was only available thanks to the fact that Serena Williams was pregnant.

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"I was working with a fantastic trainer in New Orleans named Mackie Shilstone," Hamilton explained. "He works with professional athletes but I got a spot with him because Serena Williams was pregnant. I bet Mackie Shilstone read about two hours a day on how to, scientifically, get more out of the older body. He works with young, professional athletes and not 62-year-old women, but we worked really hard. There was pilates but there was also nutrition and physical therapy."

"I mean, I had a village," she continued. "He owned my butt for an entire year; I didn't eat carbohydrates for a year. We did our very best to see how we could pull Sarah Connor from my body."

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Directed by Tim Miller and produced by James Cameron, Terminator: Dark Fate stars Arnold Schwarzenegger, Linda Hamilton, Mackenzie Davis, Gabriel Luna, Natalia Reyes and Diego Boneta. The film opens Nov. 1.