Promotional still for "Oculus."

Katee Sackhoff and Rory Cochrane in "Oculus."

Karen Gillian and director Mike Flanagan on the set of "Oculus."

Karen Gillian in "Oculus."

Katee Sackhoff in "Oculus."

Garrett Ryan and Annalise Basso in "Oculus."

Karen Gillian and Brenton Thwaites in "Oculus."

Kate Siegel, Rory Cochrane, Bob Gebert and Justin Gordon in "Oculus."

Karen Gillian in "Oculus."

Garrett Ryan and Annalise Basso in "Oculus."

Annalise Basso and Garrett Ryan in "Oculus."

Brenton Thwaites in "Oculus."

Brenton Thwaites and Karen Gillian in "Oculus."

Karen Gillian and Brenton Thwaites in "Oculus."

Karen Gillian in "Oculus."

Katee Sackhoff in "Oculus."

Katee Sackhoff in "Oculus."

Rory Cochrane in "Oculus."

Karen Gillian in "Oculus."

Poster art "Oculus"

Poster art for "Oculus"

Poster art for "Oculus"