Sacré Bleu!

Jodie Foster soaked up the Parisian lifestyle in order to prep for her latest movie, “A Private Life,” which is entirely in French.

“I went [to Paris] three weeks before shooting and just didn’t speak English at all and immersed myself so my tongue would get used to it,” she told Page Six exclusively at the film’s New York Film Festival premiere on Sunday.

The Oscar winner, 62, studied French as a child at the Lycée Français school in Los Angeles and is fluent.

However, she admitted to being a tad “rusty” because “when I’m in the States for a long time, I don’t speak the language at all!”

Foster added that she’s done “quite a few” movies in French, but not “one where I speak as much and I had a lot to do and it was a challenge.”

“The Silence of the Lambs” star plays an

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