* EnforcedMethodActing: Ian Hendry, who plays Eric, was in line for the title role and never forgave Caine for taking it. The onscreen hatred you see is very real.
* HeyItsThatGuy [[CoronationStreet Alf Roberts]] [[spoiler: takes a flying lesson.]]
* PlayingAgainstType: Michael Caine, usually the LoveableRogue (at the time), is the SociopathicHero.
* ShoutOut : There's a Zulu shield hung up on Kinnear's wall, a reference to Caine's starring role in the film ''Zulu''.
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