Larry Watson's novel is set in 1951, and the couple lives in North Dakota and travels to Montana. The movie is set in 1963, and they live in Montana and travel to North Dakota.

Diane Lane and Kevin Costner played Clark Kent's Earth parents in Man of Steel (2013).

The Blackledges drive a 1958 Chevrolet station wagon.

Was originally set to be released in August 2020, but was delayed until November due to the COVID-19 pandemic.