Martel's acclaimed novel chronicles the travails of a shipwrecked teenage boy stuck on a life raft with only a female orangutan, injured zebra, hungry hyena and brooding Bengal tiger for company. In recent years the likes of M. Night Shyamalan, Jean-Pierre Jeunet and Alfonso Cuaron have all been attached at one time or another to the project, but none has managed to get a movie into production.

Lee told the Digital Spy website his version was still at the scripting stage and he had not yet begun to think about casting. "I'm delivering the first draft," he said. "I think I've cracked the structure of the movie and I'll figure out how to do it later. "How exactly I'm going to do it, I don't know … A little boy adrift at sea with a tiger. It's a hard one to crack!"

Lee said the film would most likely be out in two years' time. The Taiwan-born director's next movie in UK cinemas will be Taking Woodstock, his comedy-drama about the 1969 music festival, which premiered in May to lukewarm reviews at Cannes. It screens at the London film festival today and opens nationwide on 13 November.

"I've noticed over the years of reading books on the Holocaust and seeing movies that it's always represented in the same way, which is historical or social realism," Mr. Martel, 46, said in a telephone interview from his home in Saskatoon, Saskatchewan. "I was thinking that it was interesting that you don't have many imaginative takes on it like George Orwell's 'Animal Farm' and its take on Stalinism."

Mr. Martel said that although there had been a few works - like "Life Is Beautiful" in film or the "Maus" books by Art Spiegelman - that had been more metaphorical, artists were generally "fearful of letting the imagination loose on the Holocaust."

"So my novel is an attempt to get a distillation on it," Mr. Martel said, "and see if there is a way of talking about the Holocaust without talking about it literally."