Walking out of the theater, you can’t help but be
disappointed with “Oculus.” That isn’t to say Mike Flanagan’s haunted mirror
tale is bad, because it isn’t, but there’s a world of unrealized potential left
on the screen. Between Flanagan’s last outing, the no-budget “Absentia,” and a
cast that includes geek favorites Karen Gillan (“Doctor Who”) and Katee
Sackhoff (“Battlestar Galactica”), you have higher hopes than what you get.