In this image released by Paramount Pictures, Anton Yelchin (left), and Chris Pine appear in a scene from ‘Star Trek Beyond’. (AP)

In the previous “Star Trek” installment, Spock cried. In the latest, “Star Trek Beyond,” he laughs. And not just a little snicker, either, but a belly-full one. What bold explorations into the farthest reaches of the galaxy hold for Spock no one knows. A sigh? A hiccup? “Star Trek Beyond,” like most of the rebooted properties flying around our movie theaters, delights in nostalgically resurrecting iconic characters and tweaking them anew.The balance is a delicate one, as seen in the pre-release debate around this film revealing Sulu (John Cho but formerly played by LGBT icon George Takei) as gay. The scene in question turns out to be a mere moment, lightly handled, showing Sulu greeting his partner and their daughter after a long mission. It’s all expressed with just a few arms tenderly draped across shoulders.And it’s the kind of welcome touch that director Justin Lin, the “Fast & Furious” veteran who takes over for J.J. Abrams, has brought to this pleasingly episode-like installment. The opening scene, fittingly, plays with a smaller scale. Captain Kirk (Chris Pine), on a diplomatic mission, appeals to a snarling beast looming above him in a crowded amphitheater. Enraged at Kirk’s offer, the alien beast hurtles down upon him, only to turn out to be no more monstrous than a feisty bulldog.Mega-sizedThe film finds a bored Enterprise finishing up a five-year tour in deep space. The (albeit brief) change of pace is immediately appreciated. The last two beefed-up “Star Trek” movies, as if overcompensating for decades of Trekkie nerd-dome, threatened to make the once brainy “Star Trek” less distinct from other mega-sized sci-fiadventures — just another clothesline of CGI set pieces strung together. Like its recent predecessors, “Star Trek Beyond” is mostly an assortment of effectsheavy scenes with bits of talking in between.

But unlike the previous film, 2013’s bloated “Star Trek Into Darkness,” not everything is quite so much of a life-and-death issue (the exhausting de facto pitch of today’s summer blockbuster). The Starship Enterprise, led by Captain Kirk (Pine, looking more natural in the role), is lured through a nebula where a would-be rescue mission turns into a trap set by the villain Krall, whose spectacular army of mechanical drones (“bees” he calls them) attack in an overwhelming swarm. In a galactic blitz, the Enterprise is torn to shreds and crashes down on a rocky planet where the ship’s scattered crew tries to gather, survive and understand Krall’s motives.

A local becomes an essential guide for them: Jaylah (a nimble Sofia Boutella), a pale loner with black streaks running down her face who helps the crew discover the Federation’s history on the planet. The backstory, though, never quite gets filled out, and the plot serves as little more than a mechanism to test the efficient camaraderie of the Enterprise crew. Among them: Zoe Saldana’s Uhura, Simon Pegg’s Scotty, Karl Urban’s Bones and Chekov, played by the late Anton Yelchin, a fine actor who’s disappointing underused here. They’re an entertaining enough bunch meandering around, and screenwriters Doug Jung and Pegg (who, as the writer of “Spaced,” knows plenty about the intersection of comedy and science fiction) have injected some humor to the proceedings.

The heart of the film, though, like the previous two, is the bromance between Kirk and Zachary Quinto’s Spock. They’re Felix and Oscar in outer space, and still the highlight of this batch of “Star Trek” films. It’s only late in the film that the alien mask is pulled away revealing the actor underneath Krall: Idris Elba. For those who didn’t place his baritone earlier, the reveal comes as a disappointment. It should be a crime in deep space, as it is on Earth, to shroud such a tremendous force behind mountains of extraterrestrial makeup. But I suppose had Elba been an unadorned baddie all along, the Enterprise might really have finally met its match.Sequences“Star Trek Beyond,” a Paramount Pictures release, is rated PG-13 by the Motion Picture Association of America for “sequences of sci-fiaction and violence.” Running time: 122 minutes. Two and a half stars out of four. Paramount Pictures, Skydance and Bad Robot have announced a fourth film in the rebooted “Star Trek” series, starring Chris Pine and Chris Hemsworth. The studio made the announcement Monday, four days before it launches “Star Trek Beyond,” disclosing that Pine’s Captain Kirk will cross paths with his father, described as “a man he never had a chance to meet, but whose legacy has haunted him since the day he was born.” Hemsworth, who appeared in 2009’s “Star Trek,” will return to the space saga in the father role as George Kirk. The remaining cast — which includes Zachary Quinto, Zoe Saldana, Karl Urban, John Cho and Simon Pegg — is expected to return. The late Anton Yelchin, who died June 19, had played the Chekov character in the three reboots. J.D. Payne and Patrick McKay will write the screenplay.

J.J. Abrams and Lindsey Weber will produce through Bad Robot Productions. David Ellison and Dana Goldberg of Skydance will executive produce. The announcement did not indicate who will direct. Justin Lin directed “Star Trek Beyond” from a script by Doug Jung and Simon Pegg. “Star Trek” grossed $380 million worldwide in 2009 and “Star Trek: Into Darkness” earned $460 million worldwide. “Star Trek Beyond” — the 13th film in the series dating back to 1979’s “Star Trek: The Motion Picture” — will make its premiere at Comic-Con on Wednesday in San Diego. Hemsworth is currently starring in “Ghostbusters” alongside Melissa McCarthy, Kristin Wiig and Kate McKinnon, and filming “Thor: Ragnorak” and “Avengers: Infinity War — Part 1” back to back.By Jake Coyle