Actress Chloe Moretz at the 'Greta' Premiere. Greta is a 2018 Irish-American horror drama film directed by Neil Jordan and co-written by Ray Wright and Jordan. The film stars Isabelle Huppert, Chloë Grace Moretz, Maika Monroe, Colm Feore, and Stephen Rea. The plot follows a young woman that befriends a lonely widow who's harbouring a dark and deadly agenda towards her.