Light of My Life is an American drama film written and directed by Casey Affleck. It stars Affleck, Anna Pniowsky, Tom Bower, and Elisabeth Moss.
It had its world premiere at the Berlin International Film Festival on February 8, 2019. It was released on August 9, 2019, by Saban Films.
A father must protect his daughter by disguising her as his son after a plague wipes out most of the female population.

“Light of My Life” is a post-apocalyptic story: a pandemic has wiped out the female population on the planet, including the unnamed father's wife and Rag's mother (Elisabeth Moss, seen in flashback). Now, father and daughter hide out in the woods. The world is now populated only by men, so the anomaly of Rag—apparently immune—is fraught with danger. Rag's hair is shorn short, she wears caps and baggy track suits. Her body hasn't begun to develop yet. She looks like a scrappy little boy. “Light of My Life” calls to mind other recent parent-child survival dramas like “Leave No Trace,” “The Road” or “A Quiet Place.” Father and daughter do “red flag” drills for what happens if danger finds them.

Cast.
- Casey Affleck as Dad
- Anna Pniowsky as Rag
- Elisabeth Moss as Mom
- Tom Bower as Tom
- Timothy Webber as Lemmy
- Hrothgar Mathews as Calvin
- Monk Serrel Freed as young man
- Deejay Jackson as counterman
- Patrick Keating as bearded man at the camp

In September 2016, it was announced Casey Affleck would write, direct, and star in the film, while Teddy Schwarzman will produce under his Black Bear Pictures banner. In February 2017, it was announced Anna Pniowsky would star in the film, alongside Sierra/Affinity who will produce the film and handle international sales. In August 2018, it was revealed Elisabeth Moss had joined the cast of the film.
Principal photography began in February 2017 in British Columbia's Okanagan.
Daniel Hart composed the film score. The soundtrack will be released at Varese Sarabande Records in August 16, 2019.
