I know, I feel so bad myself, but Paul Bettany! Ian McKellen! Audrey Tautou! (I don't know why I'm squicked by the idea of her being kissed by Tom Hanks.) And I think Alfred Molina is going to play the French servant.

Of course, if I were making it, I would populate it with generous flashbacks and have McKellen also play Da Vinci and Sophie Marceau and Johnny Depp play the Holy Couple. :D THAT would be fun. Although - have you seen The Passion? I thought Monica Bellucci was an inspired choice for M. Magdalene. Although they did the same retarded thing about her being a prostitute in that film. !!!