Yes, it was one of those afternoon theme showings of NFL Films. This one was about the history/impact of black players on the game. To be absolutely clear, it was Homer Jones WR of the NY Giants who is credited with inventing The Spike-- which is generally regarded as the first highly-individualized scoring celebration on the football field.
Watch the movie "Knute Rockne, All American" (1940). While there is little doubt that Rockne invented the forward pass, there is debate over one aspect of this film. In his first scene as George Gipp, Reagan is sitting around doing nothing when Rockne orders him to go in at halfback to play against the varsity and run the ball. Gipp asks "How far?" and proceeds to run it back all the way. After crossing the goal line he bounces the ball off the endzone, instead of laying it down for the "touchdown." An argument has been made that this was the first spike in the history of football. At least it is the first "recorded" spike. Did the current tradition of choreographed celebrations all stem from what Ronald Reagan did in this 1940 film? You decide.
