On what movie is the TV show "Alice" based?

"Alice" is an American sitcom that aired on CBS from August 31, 1976, to March 19, 1985. The series is based on the 1974 film, "Alice Doesn't Live Here Anymore"  the movie starred Ellen Burstyn as Alice. The role was originally offered to Shirley MacLaine who later regretted turning it down.

The show stars Linda Lavin in the title role, a widow who moves with her young son to start life over again, and finds a job working at a roadside diner in a suburb of Phoenix, Arizona. Most of the episodes revolve around events at Mel's Diner, where Alice is employed.

Alice Hyatt (Lavin) is an unemployed widow after her husband, Donald, is killed in a trucking accident, and with her young son Tommy (played by Alfred Lutter in the pilot episode, reprising his role from the film, but played by Philip McKeon thereafter) heads from their New Jersey home to Los Angeles so that she can pursue a singing career. Her car breaks down on the way in Phoenix (from a presumed engine fire, as seen in the opening credits), and we meet her soon after she has taken a job as a waitress at Mel's Diner, on the outskirts of Phoenix. (The later seasons' exterior shots were of a real diner, named Mel's, still in operation in Phoenix.)