There is no official film for the 1908 London Games. However, the IOC has assembled 14 minutes and 38 seconds of footage. Via David Wallechinsky, president of the International Society of Olympic Historians (ISOH). See more of his review here: https://isoh.org/cause-view/olympic-films-part-1/

While the IOC footage is unavailable, I was able to combine about 10 minutes of footage from the following three videos: https://youtu.be/es5LLX1uSmk https://youtu.be/c-sFWDzvgyw and https://youtu.be/1A7IxdhuzhU

See my review here: https://letterboxd.com/zepfanman/film/olympic-games-1908/

This work is marked with CC0 1.0 https://creativecommons.org/publicdomain/zero/1.0/