Juggling in Movies
A Connecticut Yankee in King Arthur's Court (1949)
[Bing Crosby, Rhonda Fleming, William Bendix, Cedric Hardwicke]
A singing mechanic from 1912 finds himself in Arthurian Britain.
At 27:17, Duke Johnson is seen juggling 3 clubs for about 7 seconds to entertain King Arthur. The entire movie may be seen here.