Heath LedgerJohnny Depp may take over Heath Ledger’s role in what has become his last film role.

Heath was filming the Terry Gilliam fantasy film The Imaginarium of Doctor Panassus in London last weekend and after short break at home in New York, was set to return to the UK for six more weeks of filming next week.

An inside source told the Sun: “There is a point in the film when Heath falls through a magic mirror. He could change into another character after that and that is where Johnny would come in.”

“It’s a weird, fantasy, time-travel movie so Heath’s character could easily change appearance. It would be a poignant moment.”

“Johnny’s not working at the moment so everyone is praying he will do it.”

Production of the $30million film has been postponed indefinitely by the studio while different possibilities are explored. Heath’s casting in the lead role is said to have been a “key factor” in securing financing for the independent film so his death could be counted as a “force majeure”, freeing all parties of liability regarding agreed contracts.