As Above, So Below is a 2014 American horror film written and directed by John Erick Dowdle from a screenplay he co-wrote with his brother Drew. The film stars Perdita Weeks, Ben Feldman, Edwin Hodge, François Civil, Marion Lambert, and Ali Marhyar. The title refers to the popular paraphrase of the second verse of the Emerald Tablet. The film is presented as found footage of a documentary crew's experience exploring the Catacombs of Paris in search of the philosopher's stone, only to be confronted by supernatural forces hidden deep beneath the city. It was loosely based on the nine circles of Hell from Dante Alighieri's epic 14th-century poem Divine Comedy.