Critical Past has at least three silent video clips (lasting a total of almost seven minutes) of footage of the 1917 World Series between the Chicago White Sox and New York Giants. Information on the identity of most of the players/personnel comes from members of SABR's Deadball Era Committee (not all IDs may be correct), which got wind of the links via John Thorn.
The first clip has footage from Game 1, as well as pre-game stuff: fans waiting to get into Comiskey Park, the managers - Pants Rowland (White Sox) and John McGraw (Giants) - reviewing the ground rules, and starting pitchers Eddie Cicotte (RH) and Slim Sallee (LH) warming up. From the look of the White Sox players, it's Hammer Time.
In the long shot of the White Sox dugout, Happy Felsch is on the far left, with John "Shano" Collins beside him, followed by Fred McMullin and Reb Russell (just past the big baseball). Joe Jackson and Nemo Leibold may be standing outside the dugout, with Eddie Cicotte in the background and Chick Gandil and Byrd Lynn in front of Cicotte. ... The black man on the Giants bench at the one-minute mark may be J. L. Mackall, the team's trainer. Manager John McGraw is sitting in front of the dugout, with Art Fletcher on his right and Red Murray on his left.
2-1 and take the series in six games, despite being shutout for 24 consecutive innings. Despite the Giants playing on the road, they are listed as the home team (perhaps "Giants" is permanently affixed, since the scoreboard is in New York). (More information and pictures of how fans followed baseball games from afar more than 100 years ago can be found here.)
Footage from Games 3 (October 10) and 4 (October 11), played at the Polo Grounds in Washington Heights, in upper Manhattan. New York Mayor John Mitchel arrives and throws out the first pitch. The Giants win 2-0, scoring in the fourth when Holke doubles in Robison and Burns singles in Holke. In Game 4, Benny Kauff hits his first of two home runs; this one is an inside-the-park dong to center. New York wins 5-0. (The two Giants talking together are Rube Benton and Dave Robertson.)
A third clip, filmed in Chicago, is here.