[King of Kings (1927-28)]

The "road show score" you are referring to is a modern composition and recording there was no 1920s recorded score for this 18 reel version. The Riesenfeld score was recorded in 1928 for the shortened 14 reel general release version of the film, and this is the version that has been most commonly available until Criterion put out the DVD with both versions. The road show vrsion includes two color sequnces, and the Ressurection color sequence islonger than in the general release version. Unfortunately the rest of the picture is B&W and does not contain the tints of the original issue, but it is a beautiful transfer. Among the features in the booklet for the Criterion release is an excerpt from my book, "Cecil B. DeMille's Hollywood."

[What is the running time per reel?]

To be more precise, sound film runs (with some oddball exceptions) at 24 frames per second or 90 feet a minute, so a film that runs 7,647 feet would be 85 minutes (84.96 minutes to be precise).

 

Running times for silent films are tricker because speeds varied trough the years. The standards arrived at in the mid to late 1920s were to photograph at 20 frames per second and to project at 24 frames per second, but in the teens it was common to project at 16 fps, gradually moving up to 20-22 fps in the early 1920s.