Trivia: Bonnie Bedelia makes a cameo as John's ex-wife, Holly, via a picture of her driver's license. To illustrate the divorce, Holly even uses her maiden name, Gennero. (00:36:55)
Trivia: There are brief cameos at the start of the film by Peter Jackson as Bad Santa, who stabs Nicholas, and Garth Jennings as the Crackhead who holds hostages. Later, Cate Blanchett appears as Janine, who is hidden behind a surgical mask, and from whom Nicholas is estranged. And the film's director, Edgar Wright, is seen as the store employee pushing the cart when Nicholas walks towards the manager's office.
Trivia: Anthony Stewart Head (of "Buffy the Vampire Slayer" fame) makes a cameo as the man who congratulates Sweeney after his competition against Signor Pirelli. Head originally had a larger role, but his scenes were eventually cut out. (00:38:25)