A brother and sister use a week’s vacation with their estranged grandparents as an excuse to film a documentary reminiscence for their mom. M. Night Shyamalan (After Earth) has spent much of his career trying to duplicate the baffling success of The Sixth Sense. When all is lost, found footage! Just make sure you find enough to hold an audience’s attention for 90 minutes. What’s here can barely justify a half-hour episode of The Twilight Zone, minus commercial interruptions. The calculated shot formation, too pretty around the edges, undermines the pseudo-documentary plot gimmick at every turn. Thinking back on it, the compulsory logic-defying plot kicker didn’t survive the five-minute drive home. The always-wonderful Kathryn Hahn Skypes-in her performance as mom, while the creepy oldsters (Deanna Dunagan and Peter McRobbie) stop at nothing short of a gag-inducing running gag involving an adult diaper, the payoff to which could have been lifted from Jackass. (2015) — Scott Marks
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