Singin’ in the Rain was not adapted from a play but from songs that existed without a medium, created by producer Arthur Freed and Nacio Herb Brown.

Debbie Reynolds was only nineteen when she played Kathy Selden. Judy Garland was considered for the role, but she was deemed too old.

Gene Kelly performed the famous rain sequence while running a fever.

Shooting days lasted about fourteen to fifteen hours, and some of the cast, including Debbie Reynolds, slept on set.

Approximately five hundred different costumes were created for the movie.

Jean Hagen was the only cast member nominated for an Oscar, receiving a nomination for Best Supporting Actress.

Gene Kelly allegedly forced a French kiss on Debbie Reynolds, which she regarded as a form of sexual assault.

An unfilmed alternate ending had Don and Kathy married and acting together, while Lina marries Cosmo and takes on inarticulate roles.

During stage adaptations, the rain scenes were so loud that the singing had to be lip-synced to be heard.