Like most circus acts featured on the MMC, the Platos were probably filmed while the Mouseketeers were in rehearsal or school. There was no interaction between mice and circus act this time, the reaction shots as always being filmed at a different time. Nothing is known about this act, though there is some reason to belive the performers here also did a tumbiing and/or aerial act sans equines.
If you've come to this page expecting to see some other video, my apologies. Clips change infrequently nowadays, but the links on the home page hang around much longer. Having trouble viewing the video? If you use Firefox, Opera, or Google Chrome, try switching to Internet Explorer (not Edge). For Mac users, try installing Flip4Mac. It's free and available at Macupate or by going to Flip4Mac's website.