15. Cinderella (1950)
Episode: The Simpsons Movie (2007)
The original moment: The small creatures attend to Cinderella: bluebirds flutter about her, tying her apron.
The Simpsons moment: Identical bluebirds flock to Homer and Marge, dressing and undressing them although they make unlikely princesses.
14. Citizen Kane (1941)
Episode: Rosebud (Season 5)
The original moment: With the promise of a new life and wealth, young Kane drops his beloved sled in the snow, and the drift gradually swallows it.
The Simpsons moment: The name is the giveaway, and the whole plot cribs smartly from Kane – but Bobo the teddy is Mr Burns’ Rosebud, tossed into the snow when a new life beckons.
13. The Untouchables (1987)
Episode: Homer Goes To College (Season 5)
The original moment: Robert De Niro's grimacing Al Capone stalks a round table meeting of his cronies, giving a speech about teamwork that he interrupts to crack open the skull of a smiling sycophant, whose blood slowly oozes out over the table.
The Simpsons moment: Montgomerie Burns tries to apply a little leverage to the admissions committee and get Homer accepted into college, but the wizened old capitalist is too feeble to raise the bat.