"This is My Life" is a delightful coming of age/coming into your own as a person story about a teenage girl whose single-parent mother upends the family's life when she embarks on her lifelong dream of becoming a stand-up comedian. Samantha Mathis and Julie Kavner deliver outstanding performances as the daughter and her mother. The supporting cast shines with stellar turns from Carrie Fisher (the neurotic agent), Dan Akroyd ("The Moss"), Gaby Hoffman (the little sister, "Opal"), and Kathy Najimy and Marita Geraghty (actor friends who babysit the kids while the mother is away on gigs). There is even a brief, hilarious appearance of Joy Behar as a cosmetic saleswoman. Based on Meg Wolitzer's book, Nora Ephron's screenplay is believable, touching, and funny. The soundtrack from Carly Simon is superb. I loved the parallell tracks of the daughter's growing up and the mother finding and forging her own identity as an adult. Nicely done!