The Other Life of Captain Contreras

The Other Life of Captain Contreras (Spanish: La otra vida del capitán Contreras) is a 1955 Spanish comedy film directed by Rafael Gil.

Synopsis
Spain, 16th century: The brave captain Alonso Contreras is menaced by the inquisition, but he is not guilty. An alchemist, trying to help, gives Alonso a powerful potion in order to make him sleep until the danger flies. The potion is too much powerful and Alonso wakes up in the 20th century.

The plot is similar to Mel Gibson's film Forever Young.