Yes--he did some stuff with Russ Meyer, as you indicate. I forgot some of it, I admit. And I was wrong about Sweet Li'l Alice, which is not the title of a film. Sweet Li'l Alice was a character in the immortal soft-porn film which you have listed titled
Up, which Ebert wrote with Russ Meyer.
In any case, I'm sure you'll agree that the sum total of his contribution to the creative arts is wholly forgettable.
Yes, his career as a writer is uninspiring, but he hasn't done too badly for himself.