My Mother the Spy (2000)

Disappointed that her mother has always disappeared at important times in her life, Alison Shaeffer, a successful book editor, decides to track down her mother on a remote island in an effort to patch things up. But family secrets unravel when Allison discovers that her mother is a CIA agent after she accidentally stumbles into one of her mom's covert operations.

Unfortunately the movie My Mother the Spy is not yet available on HBO Max.