O Horizon is a 2025 American sci-fi comedy drama film written and directed by Madeleine Sackler. It stars Maria Bakalova as Abby, a gifted neuroscientist who uses her career to bury the grief over her recently deceased father. David Strathairn plays her late father Warren, and Adam Pally is Sam, a computer programmer who helps Abby reconnect with her father.

Summary from Wikipedia (CC BY-SA).