Synopsis

In 1999, New York police detective John Sullivan discovers that an old ham radio can connect him with his firefighter father, Frank, in 1969. Their impossible conversations allow John to alter a tragedy that once claimed his father's life. But changing the past creates new dangers, including a serial killer whose crimes now threaten John's family in the present.

Factoids & Trivia

• The film was greenlit for production on January 21, 1999, after its screenplay had circulated among several filmmakers.

• Although the story is set in New York City, most of the production took place in Toronto, with additional location work in New York.

• The production budget was approximately $31 million, while the film earned about $68.1 million worldwide.

• Frequency marked Michael Cera's feature-film debut.

• The end-credits song, "When You Come Back to Me Again," performed by Garth Brooks, received a Golden Globe nomination for Best Original Song.

• The film later inspired a television adaptation that aired on The CW from October 5, 2016, through January 25, 2017.