When Imrie was fourteen, she was admitted to the Royal Waterloo Hospital suffering from anorexia nervosa. Under the care of controversial psychiatrist William Sargant, she was given electroshock and large doses of the anti-psychotic drug Largactil. Imrie has written that Sargant still features in her nightmares.
Discussing her character in 'Wah-Wah': A friend of mine came to see a screening and said, 'Ceels, I was longing for you to suddenly become funny. And you didn't'. I said, 'I know, it's quite weird isn't it?' Originally Richard offered me another part but I said, 'yes, but what about this old bag?'