‘The Runner’ Review: Gal Gadot Is a Mother on a Rescue Mission in an Energetic but Uninspired Amazon Thriller

A frantic journey across London on foot provides a lot of exercise for Gal Gadot, but not much reward for viewers, in “The Runner.” Hardly the first thriller centering on an exceptionally action-ready parent surmounting various obstacles to rescue an imperiled child from some diabolical abductor, and surely not the last, this Prime Original has…