Trivia: Haing S. Ngor and Dith Pran actually met up in real life and even visited the old country - Vietnam - together before Haing's death.
Trivia: During filming, the relationship between Alec Guinness and David Lean deteriorated. The final straw came for Guinness when he realised that a large chunk of his scenes had been left on the cutting floor by Lean. After filming was complete, the two never met or spoke to each other again.