Hot off a series of horror movies and Liam Neeson-led thrillers, director Jaume Collet-Serra is an unlikely choice to helm an old-fashioned Disney adventure based on a classic theme park ride but acquits himself nicely in the pleasant summer escapism fare of Jungle Cruise (B-). Similarly, Dwayne “The Rock” Johnson, best known for muscular action films, gets to flex his unexpectedly assured comedic timing to successful avail as a South American skipper of a small riverboat who takes a group of travelers including siblings played by Emily Blunt and Jack Whitehall through a jungle in search of the Tree of Life. Johnson and Blunt are winning comic and would-be romantic partners with verbal and physical pratfalls aplenty, as he wields dad jokes and swagger in equal doses to her acerbic and acrobatic spunkiness. Faring less on the likability scale are characters played by Jesse Plemmons, Paul Giamatti and a coterie of cursed conquistadors in cartoonish or CGI villainous roles which add very little menace opposite the explorers. The film works best in rip-roaring action sequences and when Blunt and Whitehall provide some droll fish-out-of-water entanglements. As for the plot, we’ve been down this river many times in much better films. The first hour is fairly breezy fun; then as the protagonists get closer to their goal, the sogginess sets into sluggishness for a good while. Still, it’s competently made family friendly fun, and most of the kids haven’t seen the movies this riffs on, so it may all be new to them. Like its Adventureland origin attraction, you get to sit down in the shade and take a breezy ride for a while with a smile on your face for much of its duration, and that may be all we need this summer.