How About You (2007)
Ellie, a young Irish woman, is rather selfish and lazy when she asks her sister Kate for a job at the retirement home that Kate runs in a small Irish town. The home is full of irascible old timers who seem set on making Ellie's life hell. When Kate and Ellie's mother becomes ill over Christmas, Ellie is left to care for the four worst residents. Over the few days Ellie creates a family, a rather dysfunctional family, but a family out of the four mismatched residents. Vanessa Redgrave plays Georgia Platts, one of the irascibles in this charming little movie.
The film is based on a short story by Maeve Binchy. Check out a 2009 San Francisco Gate article for an interview with the author.