The actual cakes used in the movie are made by the Cake Divas - they have created one-of-a-kind cakes for numerous movies & television shows; "Buffy the Vampire Slayer", "Charmed", "Arrested Development", "Judging Amy", "ER" "NYPD Blue", "The Division", "The Drew Carey Show", "JAG," "MTV Video Awards", "Comedy Video Awards" and many more.
The names of the daughters, Maggie (Lauren Graham), Milly (Mandy Moore), and Mae (Piper Perabo), come from an e.e. cummings poem that starts "Maggie and Milly and Molly and May went to the beach to play one day." A student in Johnny's guitar class is named Molly.
When Daphne is done interviewing Jason, she puts out two cards, one of which Jason takes. When Johnny comes by and plans to take a card, there are two cards on the table when there should be one left.
When the women are getting ready for their massages Maggie ties her hair on top of her head without an obvious parting but as Milly leaves the room her hair is lower down and parted properly.