WILL Smith has admitted he “fell in love” with his costar Stockard Channing while still married to his first wife Sheree Zampino.

The actor, 53, found himself “desperately yearning” for Stockard, 77, when they’d finished filming the 1993 movie Six Degrees Of Separation.

At the time, Will had just welcomed his first child, son Trey (now 29) with Sheree.

In his new memoir Will, the father-of-three opened up about the emotional turmoil he felt at the time.

“Sheree and I were in the first few months of our marriage with a brand-new baby and for Sheree, I can imagine that this experience was unsettling to say the least,” he wrote in an excerpt obtained by People.

“She’d married a guy named Will Smith and now she was living with a guy named Paul Poitier,” his character’s name in the movie. “And to make matters worse, during shooting I fell in love with Stockard Channing.”

The Fresh Prince star added: “After the film wrapped, Sheree and Trey and I moved back to L.A. Our marriage was off to a rocky start. I found myself desperately yearning to see and speak to Stockard.”

Six Degrees Of Separation is a comedy drama about a New York-based art dealing couple whose world is flipped when Will’s character enters their lives.

This isn’t the first time Will has discussed his feelings for Stockard.

WILL’S OBSESSION

Back in 2015, he told Esquire: “With Six Degrees of Separation, I got a taste early of the dangers of going too far for a character.

“My character was in love with Stockard Channing’s character. And I actually fell in love with Stockard Channing. Will Smith.

“So the movie was over and I went home, and I was dying to see Stockard. I was like, ‘Oh no! What have I done?’

“That was my last experience with Method acting, where you’re reprogramming your mind. You’re actually playing around with your psychology. You teach yourself to like things and to dislike things.”