Movies by David Cronenberg, Jean-Luc Godard, Mike Leigh and Ken Loach are among the films selected to compete for the top Palme d'Or prize at next month's Cannes Film Festival, organisers said on Thursday. Just 18 films of the more than 1,700 submitted have been rewarded with a slot in the competition shortlist, which was unveiled in Paris by festival artistic director Thierry Fremaux.