Past Lives is a 2023 romantic drama film written and directed by Celine Song. Starring Greta Lee, Teo Yoo, and John Magaro, it follows two childhood friends over the course of 24 years while they contemplate the nature of their relationship as they grow apart, living different lives. The plot is semi-autobiographical and inspired by real events from Song's life.

Past Lives premiered at the Sundance Film Festival on January 21, 2023, and was released by A24 in the United States on June 2 and by CJ ENM in South Korea on a limited release on February 26, 2024, and a wide release on March 6. The film received positive reviews from critics. It was named one of the top ten films of 2023 by the National Board of Review and the American Film Institute, receiving praise from critics and multiple accolades, with five nominations at the 81st Golden Globe Awards including for Best Motion Picture - Drama and nominations at the 96th Academy Awards for Best Picture and Best Original Screenplay. It grossed $42.7 million worldwide.