Question: What is the song that Christian is singing during the Roxanne dance scene? I recognise the words, but I think it is to a different tune.
Answer: The words are from "Roxanne" by The Police, and the tune is "Le Tango du Moulin Rouge".
Question: Is John Leguizamo's character supposed to be the Toulouse-Lautrec (the painter) or a person from the same time period who happens to have the same name as the painter?
Answer: He's supposed to be the actual person.
Question: Seconds before Satine makes her entrance on the trapeze singing 'Diamonds...' Toulouse whispers something to Christian. It starts with 'Christian, we've successfully...' what else does Toulouse say?
Answer: Toulouse says to Christian, "Mission accomplished. We have successfully evaded Zidler."
Question: What happened to the Moulin Rouge in the film after Satine died?
Answer: It's not clear. Given that they owed a lot of money to the Duke, he probably closed them down.
Answer: Christian is not singing Roxanne, just the Argentinian. I believe Christian's words are original and not from a previous song.