When gunmen in a passing car open fire with machine-guns on Eddie Nero as he enters a shop, the staging and photographing of the scene echo the scene in Roger Corman's film where Al Capone is almost machine-gunned entering a restaurant.
A pupil has been taking love-letters between the married Mr. Ivory and his mistress; the situation broadly resembles Leo Colston's taking of letters between Marion and Ted in the 1971 film.
The bloody shoot-out at Eddie Nero's pub, resulting in several deaths on both sides, may be inspired by the massacre at the Nite Owl Cafe in Curtis Hanson's film.