By Wendy Mitchell
Updated November 11, 2009 at 09:00 AM EST

Winona Ryder and Barry Pepper will star in Hallmark Hall of Fame movie When Love Is Not Enough: The Lois Wilson Story, Variety reports. The project starts shooting this week in Toronto and will air later this season on CBS. The story is about Lois Wilson, the co-founder of Al-Anon, and her alcoholic husband Bill Wilson, who founded Alcoholics Anonymous.