“The Old Guard” (**1/2 out of four) was a moderately entertaining adaptation of Greg Rucka’s graphic novel about a covert team of immortal mercenaries (led by Charlize Theron) who suddenly become exposed and must fight and risk losing their immortality to keep their identities a secret as they take on a new recruit (KiKi Layne) and have to battle a multimillionaire business mogul (Harry Melling) who initially helped fund and sustain them. Film begins strong, with sharp dialogue and stylized action, but then begins to stall midway through and then revs up again at the ending by which point its already gone on too long. Uneven but Theron’s usual robust performance and good chemistry between her and Layne makes this overall worth checking out.