Jerry Lewis' musical entrance down the grand staircase was done in one take, a Lewis trademark. But his seven-second rush up the same 63 steps put too much of a strain on his heart and landed him in the hospital.
Another song, "Turn It On" by Harry Warren and Jack Brooks was written for this picture but cut from final print.
Some exteriors were shot at the Bel Air, California mansion also used in The Beverly Hillbillies.