The only Jerry Lewis movie I remember seeing is CINDERFELLA and I remember how funny he was. He was very subdued as Robert and, while he did a good job, it wasn't great and they could've used someone else. He's talents were underused, if used at all.
I thought the movie was hilarious, but they could've done something with the ending. Running away and leaving the women to themselves isn't an ending.
I did some reading up on the revival, and was the script rewritten, or were characters changed for the movie?
"Writing is like prostitution. First, you do it for love, then you do it for a few friends, and finally you do it for money." ~ Moliere