Halle Berry is diving back into action movie-making in a big way -- swimming with real great white sharks for her upcoming film, 'Dark Tide,' and ET is exclusively with her on the set where she talks about everything from daring stunts, to her young daughter Nahla.

"I touched a real shark, like a real great white shark in the wild," Halle tells Mark Steines as she shoots scenes on the film's set at Pinewood Studios outside London. "When I went to go touch the shark they had me tethered to the boat, and I finally said, 'Wait a second, why am I tied to the boat?' And they said, 'Well if the shark gets you, we want them to just get your arm and not your whole body.'"

But Halle reassures Mark, saying, "We all knew that we took every safety precaution, it was something I wanted to do and that I felt like you know would be safe to try to do."

Working on a boat on location in South Africa was a challenge for the cast and crew, a number of whom came down with seasickness, and Halle wasn't spared from the illness. "I got seasick the first day, threw up on Olivier [Martinez]'s shoes," Halle tells Mark candidly. "About nine people got taken off the boat 'cause they couldn't handle it," she adds.

Halle says that Nahla doesn't really understand her job quite yet. "She knows something goes on weird with Mommy because when we leave the house there's always paparazzi and people flashing and it's kinda tense and stressful, so she knows something goes on different with Mommy unlike anybody else," Halle says, adding, "I don't think she knows what that is yet."

Mark asks if she thinks that Nahla has caught the acting bug, to which Halle confesses, "I think she's got it in her blood."

In 'Dark Tide,' Halle plays Kate, a "Shark Whisperer" who has sworn off shark encounters following a nearly fatal incident, only to be beckoned back into that world by her estranged husband (Olivier Martinez).

Tune in to ET tonight for more of our Halle exclusive! 'Dark Tide' hits theaters in the summer of 2011.