She now describes the atmosphere on the ill-fated remake as "a cesspit of horrific misogyny," with body pressures even worse than those she experienced as a teenage model. She said during her modelling days, she'd never been asked to lose weight.
"It's different with film, because it's not about weight, it's about control. It's an industry with a clear agenda of ensuring women's relationships with their reflection on screen make them feel inadequate. I never went back to Hollywood again."
READ MORE:
• Lorde announces first show down under
• Taika Waititi brings Māori hero to Thor
Critics slammed the remake, which saw Garai paired with Mexican actor Deigo Luna, and audiences stayed away - Havana Nights cost $25 million to make but made just $27 million at the worldwide box office.
While she was burned by Hollywood, Garai's story has a happy ending: Returning to her native UK, she's carved out a successful career as an acclaimed film and TV actor, earning praise for her roles in the films Atonement and Suffragette and BBC series The Hour and Emma.
"It was my feminist epiphany," she now says of her very dirty Dirty Dancing experience.