 The film makes several references to _Zulu (1964)_ (qv). Theres the  choral music featured in Zulu when Spoon is talking about Rorkes  drift, and "Dog Soldiers" Sgt. Wells paraphrases "Zulus" Colour  Sgt. Bournes "be quiet now will you, theres a good gentleman,  youll upset the lads" when talking to Ryan.