Under the Mountain is a 2009 New Zealand film directed by Jonathan King starring Sam Neill, Oliver Driver, Sophie McBride, and Tom Cameron. It is based on the 1979 novel of the same name by New Zealand author Maurice Gee.

Plot

Teenage twins Rachel and Theo travel to Auckland to stay with relatives following the sudden death of their mother. Where there was once a psychic bond between them, now there is a rift as Theo, particularly, refuses to confront his grief. Rachel reaches out to him, but is rebuffed.