Natalie Portman, Mila Kunis Share Kiss in Upcoming Movie

A picture from the upcoming dark thriller Black Swan features Natalie Portman sharing a steamy kiss with Mila Kunis.

Portman plays an obsessive ballet dancer competing for the lead role in Swan Lake, but in order to get it she has to trump new pupil Kunis, reports Showbiz Spy.

The film also stars Vincent Cassel as the girls’ artistic director and Winona Ryder, who plays Swan Lake’s prima ballerina needing to be replaced.

Portman has previously admitted to Showbiz Spy that she was “terrified” about locking lips with Max Payne star, Kunis.

“I was terrified,” she said. “At the moment I lived in a state of inner terror.”

Portman — who previously shot a nude scene for short film Hotel Chevalier — also admitted she’s worried the lesbian sex sequence is overshadowing the plot of the film and worries it will make her be taken less seriously as an actress.

“Nudity is something absolutely natural and I’m not prudish — but in a film it can be distracting,” she said. “Doing Black Swan I couldn’t say no. The project is a huge opportunity for me to show a new me. I can’t always play the nice mothers. My other problem is that single pictures are being taken out of context and put on the Internet.”