"It Should Have Been Me", performed by Yvonne Fair, is the song to which Geraldine lip-synchs to in the imagined wedding between Harry and Rose.
In this episode Geraldine's name is given as Geraldine Julie Andrews Dick Van Dyke Supercalifragilistic-expialidocious Chim Chim Cher-ee Granger. But in the episode Spring she says her name is Boadicea Geraldine Granger.
Alice: (to Geraldine about Harry) Has he parked his purple Porsche in your personal parking space?
The episode topped the UK TV viewing chart on Christmas day, 2006 with 11.4 million viewers.
This is not the first time Geraldine has fallen into a puddle. She also was fully submerged in the season 2 episode, Love and Marriage. Each circumstance involves a man that Geraldine is romantically interested in.
Geraldine's rising out the puddle is a reference to Captain Willard rising from the water in Francis Ford Coppola's Apocalypse Now.