The Other Sister

A mentally challenged girl proves herself to be every bit as capable as her "perfect" sister when she moves into an apartment and begins going to college.

At 01:42, during the opening titles, we look down from a window and see Bud Markowitz for 6 seconds, credited as the Roselake Juggler, teaching a boy and a girl to juggle 3 balls.

At 16:18, Bud Markowitz and the boy and girl he was teaching earlier are each now juggling 3 balls, seen in the background for 5 seconds.

The entire movie may be seen here.