TORONTO — Walking the Toronto International Film Festival red carpet Thursday evening, Naomi Watts remembered being at the event 25 years ago when her life — and the world — turned upside down. Watts visited in 2001 to promote “Mulholland Drive,” David Lynch’s film about an aspiring actress who befriends a car crash victim with amnesia. Her turn as Betty Elms wound up being her breakout role at a pivotal time in her career.“I had packed my bags emotionally and physically so many times and wanted to cut and run because it was just all too painful. The constant rejection,...