So you're not into ballet?
You don't have to be to see the mistakes in this performance. And if you miss one or two mistakes, don't worry the giggles from the audience will alert you that something is going on.
A ballet performance like this would have been horribly embarrassing to all but preschoolers, except that it was planned this way. It's an amazing dance with mistakes planned right in without interrupting (much) the graceful flow of the entire ballet performance.
And if you ARE into ballet, you might appreciate it even more, cringes and all.