Man on a Tightrope (1953)

A Czech circus owner and clown and his entire troupe employ a daring stratagem in order to escape en masse from behind the iron curtain.

There are 5 scenes that include juggling:

At 0:06:44, a clown juggles 3 balls while girls spin plates.
At 0:15:18, a man and a woman practice passing 6 clubs outdoors.
At 0:45:02, a knife thrower briefly juggles 3 knives.
At 1:31:33, a circus parade includes clowns juggling 3 balls and doing devil sticks.
At 1:44:30, a clown juggles 3 balls as he walks down the road.