“Apex” (**1/2 out of four) was a visually spectacular but dramatically empty action melodrama about a trained mountain climber (Charlize Theron) reeling from a recent tragedy and retreats to the Australian wilderness; she is then hired by a local (Taron Egerton) to help with a climb but soon finds that he is a cunning psychopath who is out to kill her. Beautifully filmed by Lawrence Sher on stunning locations in Greenland and Australia but after a while there’s a fundamental hollowness to the script and story that film never fills. Moderately entertaining while it lasts but stops short of being really satisfying.