The Phantom of the Opera

This musical was written by Andrew Lloyd-Webber and was inspired by the 19th-century novel by Gaston Leroux set in a Parisian opera theatre and the labyrinthine tunnels far below it.

So yes, an opera about an opera - but we went one stage further and provided parts for the subterranean stone walls for the film of an opera of an opera.

The most recognisable features from the London production were reproduced in full; the 17ft high chandelier weighed 2.2 tons, costing $1.3 million, and was provided by Swarovski. It contained 20,000 full cut crystal pendants, and had its own stunt double for the riskier scenes. There was also a third chandelier made, to be equipped with electricity and lighting for the opening scene. It's not all expense though - the Phantom's white half-mask prop that Gerard Butler wore for the film sold for £6,450 on eBay.