From Cristian Mungiu to Asghar Farhadi, this year's Cannes will be big on arthouse auteurs, light on splashy studio fare. The 79th Cannes Film Festival is shaping up to be an edition that’s lighter on studio movies and heavier on arthouse fare. Don’t expect Tom Cruise or anything like “Mission: Impossible — The Final Reckoning,” as the actor’s A.G. Iñarritu vehicle “Digger” is instead tipped to premiere on the Venice Lido. Instead, we’re looking at a lot of films on the hunt for distribution —