I believe it was a little joke like the old klingon proverb before Kill Bill Vol. 1. Quentin always talked about how a lot of Grindhouse films would have a different name in America then it had overseas. Also, he always talks about how a film with missing reels would have a different tone and almost be a different film. In an interview, he said that American film distributors would hack a lot of the mood scenes out. I like to believe that Thunder Bolt is the version playing at Cannes. And since it is a Grindhouse film the foreign title was left in by mistake, but a funny mistake.
