Terminally-ill actress Valerie Harper is returning to work on a TV movie just months after doctors told her she has incurable brain cancer. The former The Mary Tyler Moore Show and Rhoda star announced she had just months to live back in March (13), but she's determined to make the most of her time by signing up for a new project. The 73 year old will star in the adaptation of author Ronda Rich's novel The Town That Came A-Courtin'. Harper started shooting the movie in Vancouver, Canada on Wednesday (31Aug13). The veteran star has also invited a camera team from America's NBC into her home to document her ongoing cancer battle.