Jennifer Garner just dropped a bombshell that's shaking Hollywood—revealing she once bit off part of a co-star's ear during a fight scene, in a moment she compares to Mike Tyson's infamous 1997 bite.

While promoting the second season of her thriller series The Last Thing He Told Me, Garner shared the shocking story about stunt performer Sala Baker, whom she recently worked with again. "The last time I fought this performer, Sal, was in The Kingdom," she said, referring to the 2007 thriller.

Garner explained that director Pete Berg pushed for extreme realism, telling Baker to "try to kill me" and instructing her to "do whatever I could to survive." With minimal choreography, the scene escalated quickly.

Jennifer Garner in 'The Last Thing He Told Me'. Saeed Adyani/Apple TV+

"I ended up scrambling onto his back," Garner recalled. "I bit his ear, and we have a photo of him with a piece missing from his ear, because we were dead serious." When co-star Nikolaj Coster-Waldau asked for confirmation—"You actually bit off part of his ear?"—Garner replied, "Like Mike Tyson."

The intensity carried into their latest project, with Garner insisting the crew not intervene. "I said, 'No, no, no, he's not going to be careful. I'm not going to be careful. Just step back. I have unfinished business here,'" she said, adding that Baker stayed on for the whole season.

Elsewhere in the press conference, Garner discussed the appeal of The Last Thing He Told Me, where she plays Hannah Hall, a stepmother navigating her husband's disappearance. She highlighted the trend of "competency porn," saying, "We're so eager to see adults be capable, smart, and have integrity... Hannah does that for me."

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The Last Thing He Told Me debuts on Apple TV on Feb. 20.