No, I do not know of Maurice Bejart. I see that he had a ballet company and that he did something to Bolero, I presume it is "Les uns et les autres". I couldn't find too much on the film. If I understand correctly, it was an all male cast and done originally in 1960.

I do like this version of Bolero. I think this is a great piece of animation and if you watch it and interpret the film, it is actually quite deep (meaningful) with an interesting story.

PART 1
PART 2

Although it is great, I am not sure this is the one I originally saw and enjoyed when I was a child.