Star Wars Episode III may be the blockbuster of the moment. But the movie festival-goers were fighting tooth and nail to see yesterday was not George Lucas's latest epic, but a small Mexican film that, along with Michael Haneke's Caché, is a favourite for the Palme D'Or. But the film, "Batalla en el Cielo" (Battle in Heaven), had attracted controversy for its highly explicit sexual content even before its premiere in Cannes. Charlotte Gibbins reports in The Guardian.