Official MIDSOMMAR Trailer Witness the official MIDSOMMAR trailer! The film, written and directed by Ari Aster (Hereditary), stars Floresnce Pugh, Jack Reynor, William Jackson Harper, Vilhelm Blomgran, Archie Madekwe, Ellora Torchia, and Will Poulter, MIDSOMMAR will be released in theaters on July 3. The story follows a young couple visiting an isolated Swedish village; over the course of their vacation, they discover that its residents participate in an eccentric set of seasonal traditions. The recent death of the main character’s parents casts a sense of dread over the proceedings.