Action flick machismo suffers an identity crisis in “Stuber,” a so-so buddy comedy frequently redeemed by the charisma of Kumail Nanjiani (“The Big Sick”). He’s Stu, a mild-mannered Uber driver whose ...

Last August, Aubrey Stuber set out on a five-day 35 mile backpacking trip along with five companions. Just two weeks earlier, Stuber, an intelligence officer with the 628th Aviation Support Battalion, ...