What did Lionel mean in the beginning with..."2 kids walk into a restaurant, one said, What's chocalate moose? It's good, it's a lot like chocolate pudding..."
It seemed awkward to a say to your press agent when he first came in...
I think the whole point of the joke was it was so out of context that it actually appeared to be funny, even though the joke itself is unfunny. You really can't take it at face value. He's an artist, and a lot of artists are strange. Just look at his character!
It's an intended rhetorical non-funny joke commenting on the fact that there are children who live in the world who know what chocolate mousse is but not chocolate pudding. Its' like a New Yorker magazine joke. The rest of the world learns chocolate pudding first. It's Lionol's way of separating himself from such bourgeoisie people by making the remark.
It's funny because I just re-saw it now, and asked myself, "What the hell does that joke mean? Maybe I'll ask it on imdb," and after looking through the boards, I realized I had, in fact, already asked the question, lol.