Oculus is a 2013 American supernatural psychological horror film co-written, edited, and directed by Mike Flanagan. It is based on his short film Oculus: Chapter 3 – The Man with the Plan, and stars Karen Gillan and Brenton Thwaites as two young adult siblings who are convinced that an antique mirror is responsible for the death and misfortune that their family had suffered.

Karen Sheila Gillan is a Scottish actress and filmmaker. She gained recognition for her work in British film and television, particularly for playing Amy Pond, a primary companion to the Eleventh Doctor in the science fiction series Doctor Who (2010–2013), for which she received several awards and nominations. Her early film roles include Ally in the thriller film Outcast (2010) and Jane Lockhart in the romantic comedy film Not Another Happy Ending (2013). She also worked on the stage while in Britain, appearing in John Osborne's play Inadmissible Evidence (2011).