Ari Aster (born July 15, 1986) is an American writer-director, best known for the acclaimed horror films "Hereditary" (2018) and "Midsommar" (2019). He has also written and directed several short films, including "The Strange Thing About the Johnsons" (2011), "Beau" (2011), "Munchausen" (2013), and "Basically" (2014).