Trivia: During production, James Cagney broke a rib whilst filming a dance scene. In spite of the injury, he still managed to complete the sequence.
Trivia: In the movie, Lou Gehrig concludes his farewell speech with the famous line "I consider myself the luckiest man on the face of the earth". However, in real life, he continued after this point. The last lines of his speech were "And I might have been given a bad break, but I've got an awful lot to live for. Thank you."