Abfolgefehler: After the conclusion of "Let's Do It (Let's Fall In Love)" Linda reaches into her purse twice to give Cole his cigarette case.
Abfolgefehler: When the Porter's are getting married, right after they are announced, all their friends and family come over. Someone comes over and gives Linda a kiss on her right cheek, which then leaves a mark. Not long after, the mark is gone, with no sign of Linda wiping it off.
Anachronismus: Late in the movie the Murphys arrive in a 1956 Cadillac to see Cole Porter for the last time. Parked in front of his Massachusetts house is a 1966 Chrysler. Porter died in 1964.
Abfolgefehler: In the finale scene where Cole is hugging the children, the order of the kids changes with the different angles (the girl skips between the right side and the centre).
Abfolgefehler: When Cole Porter is in the garden playing his piano and Linda comes back from being away, Cole stands and talks to her, and the cushion on the back of the chair falls down. As he sits down, the cushion is back in place.
Anachronismus: Scenes showing Cole Porter musicals being produced on Broadway in the 1930s show African-American and white women dancing together in the chorus lines. Broadway chorus lines weren't racially integrated until the 1970s.
Fehler, die von Charakteren gemacht werden (möglicherweise Absicht der Filmemacher): In the song "Night and Day", Kevin Kline says, "Try E-flat" after the band has already started modulating to that key.