Jeffries-Johnson World’s Championship Boxing Contest (1910/2005)

Directed by J. Stuart Blackton

IMDb
Wikipedia

According to both the IMDb and Wikipedia, the length of this film is 100 minutes. The entire film has never been released on home video, though excerpts can be seen in Ken Burns’s documentary Unforgivable Blackness: The Rise and Fall of Jack Johnson, which is available on DVD from Amazon and PBS. Excerpts can also be seen on YouTube in the 10-minute documentary The Boxing Film That Was Banned Around the World. 25 minutes of footage can also be seen on YouTube.