Every director/writer worth their salt should attempt to reference their mum in their work, and Wright rose to the challenge gamely, and in a subtle way. Throughout the film, we hear Barbaras nickname for her son is Pickle this is a reference to Wrights own childhood, where his mum referred to him by the same moniker when he was young. Its also a term of endearment used in Spaced. Another mother who gets a nod in the film is Frosts mother-in-law, who plays one of the Winchesters regular drinkers. Shes the one Frosts Ed refers to as a cockicidal maniac and a pioneer of café au lait porn. Apparently, Peggs laugh in this scene wasnt scripted Frost was allowed to improvise, and had his friend in stitches over the comments.