By KIRSTY WILKIE MOVIE tough guy Harvey Keitel has taken the role of Detective Gene Hunt in the upcoming US remake of Life On Mars. Hunt's character will remain a tough-talking, iron-fisted head of department, though the show is being given a strong New York City feel and a plot shake-up.

By Robin Turner MICHAEL SHEEN, rapidly winning himself a name as one of the film world's leading character actors, is about to don the personna of the late, selfopinionated football manager, Brian Clough.

By EDDIE FITZMAURICE ACTOR Colm Meaney had admitted he can't stand science fiction - despite his seven years in Star Trek. The Dublin-born star, who played Chief Miles O'Brien in the sci- fi classic, said he never watched the show before landing the part and was not sorry when he left.

By Baz Bamigboye MICHAEL SHEEN, who will begin filming director Tom Hooper's movie The Damned United, about Brian Clough's controversial 44 days as manager of Leeds United in 1974. Clough replaced Don Revie, a man he hated, at a club he loathed.

Ellen DeGeneres has done several HBO specials and hosts a daytime talk show on broadcast TV. In November, she'll take her act to ad- supported cable. DeGeneres will host a two-hour comedy and music special called Ellen's Really Big Show on TBS Nov. 18.