Hollywood diva Sharon Stone has switched off the sex appeal to play a neglected wife and mother in "When a Man Falls in the Forest," a Berlin Film Festival contender which she also produced. After the film's premiere, Stone said her appearance as a seductive murderer in the 1992 global smash hit "Basic Instinct" bought her greater freedom to pick roles that challenged her. "Each actor or actress has their breakthrough film," she said Monday. Deborah Cole reports.