The film (I believe it is simply called "Picasso") features the little man
creating about twenty or thirty drawings and paintings. The film is shot with
the camera on one side of a backlit canvas (actually I think it's oiled paper
or some other translucent thing) and Picasso on the other side. So, what the
viewer sees the artwork as Picasso creates it; the artist is not in shot. It
also has this cheesy bull-fighting music as a soundtrack.
I saw it in a limited art house run about ten years ago, and I must say it is
one of the most impressive films on art I have ever seen. One actually
witnesses Picasso's creative process, the decisions he makes, the way he
develops a painting.
If anyone knows where to find this film, I'd sure be grateful.