New couple alert! Halle Berry has joined the cast of John Wick: Chapter 3, and Life & Style has learned she’s become much more than just Keanu Reeves’ co-star.

“Halle and Keanu are dating,” an insider exclusively tells Life & Style. “They started seeing each other even before they began filming. As soon as they started getting to know each other, they realized there was something there that was stronger than a friendship.”

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Their movie is filming in NYC, but they won’t be showing any PDA between takes. “They want to keep their romance on the down-low for now,” the insider says to Life & Style. “But it’s only a matter of time until they go public.”

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After her 2016 divorce from Olivier Martinez, Halle, 51, dated 35-year-old music producer Alex Da Kid for five months. But with Keanu, 53, she’s found someone she thinks has long-term potential. “Keanu is totally Halle’s type,” the insider says to Life & Style. “She likes that he’s very mysterious, introspective and down-to-earth. He’s not about the whole Hollywood spotlight thing. She finds that very attractive — and, of course, she thinks he’s super handsome.”