Sony Pictures Classics has confirmed its acquisition of North American rights to James Toback's documentary Tyson, which won Un Certain Regard's Knockout Prize following its world premiere in Cannes last summer.

Tyson will receive its North American premiere at Sundance and opens on April 24. NBA All-Star Carmelo Anthony has boarded as executive producer. ICM negotiated the deal with Sony Pictures Classics on behalf of Toback.

Damon Bingham, Harlan Werner and Toback produced the film, which allows the former world heavyweight boxing champion to examine his life and tell his story in his own words.

'The effort to portray a complex, internationally iconographic figure in a stylistically originally way has proved a far more ambitious, but far more satisfying task than I had envisioned when I started shooting over two years ago,' Toback said.

In a statement Sony Pictures Classics said: 'Tyson is an important movie and an important cultural document. James Toback is at the peak of his form. We look forward to bringing this film to the American public.'