(at around 55 mins) When the first play is shown, the Rams' Quarterback (Robert Waterfield) runs the ball down the right sideline, it may appear that he is tackled and down at the 7-yard line. However, while that would be true by the NFL rules today, this game was played in 1954 when the rules for tackling were more similar to rugby - the tackler had to maintain his grasp on the downed runner, otherwise the runner was still free to continue forward.
Although his appearance in the film has not been confirmed, a July 1953 Hollywood Reporter news item adds Charles Victor to the cast.
According to an October 1953 Variety news item, Hall Bartlett produced Crazylegs (1953) for $145,000.
The film opens with the following written foreword: "This is the story of an American boy-one of the greatest athletes of our time. All football sequences are taken from games in which he played."