When Jimmy goes through Mr. Devlin's address book looking for "Walter Strider", he finds phone numbers for Claudia Schiffer, Norman Schwarzkopf, Stephen Sondheim, and George M. Steinbrenner III (first names added). All of the numbers have special characters inserted to ensure that they are not real numbers that people might try to call.
When Delilah first visits the lab with Jimmy she's wearing a bustier beneath her dress; in subsequent scenes she isn't. Later during the fight in the lab she takes of her dress (not shown or explained on screen) and she is then wearing her petticoat and her bustier again.
Del Blaine's dress during Banning's party and the climatic scene in the lab changes back and forth between one with multiple ties in the back and a stunt dress (with one large tie in the back) when there is more action.
James Brown: [to Del Blaine]
There's one more thing I'd like to say, um... it's not the "in" thing today to give compliments to a young lady. But... I just got to let you know that... you got a nice rack.