Strand Releasing has acquired all U.S. rights to Carlos Reygadas’ “Post Tenebras Lux,” which won the best director prize at Cannes in May.The film, whose title is Latin for “light after darkness,” will open May 1 at the Film Forum in New York and in other cities around the country. “Lux,” the fourth feature from Reygadas, had its world premiere in competition at Cannes. Reygadas’ first feature, “Japon,” received a special mention for the Camera d’Or at Cannes in 2002; “Battle of Heaven” was presented in competition in 2005, and his film “Silent Light” won the jury prize in 2007. Jay Weissberg said in his Cannes review for Variety, “Maverick helmer Carlos Reygadas compares ‘Post tenebras lux’ to an expressionist painting, though Dadaist is more accurate. Auds will go for ‘perplexing,’ likely to be the kindest word used when describing this challenging non-story about a family living in the grandeur of Mexico’s wilds.” The deal was done between Strand Releasing’s Jon Gerrans and Fiorella Moretti of NDM, the new international sales label of Mantarraya Producciones.