Robustly entertaining while carrying the weight of impossible audience expectations, “Star Wars: The Force Awakens” is a fascinating, often satisfying mixture of rollicking mythmaking and fan service. As with many recent franchises restarting their creative and commercial juices, the seventh installment of this iconic sci-fi series feels spread a little thin, trying to satisfy longtime supporters while introducing fresh energy and new characters. But after the uninspired prequels, most will simply be happy to know that director J.J. Abrams has delivered a properly swashbuckling “Star Wars” adventure.

    Bringing together the original trilogy’s stars — Harrison Ford, Mark Hamill, Carrie Fisher — and adding rising talents such as Oscar Isaac, John Boyega and Daisy Ridley, the film has benefitted from good reviews and glowing word-of-mouth.

    Set decades after “Return of the Jedi,” “The Force Awakens” explains early on that beloved Jedi Luke Skywalker (Hamill) has disappeared, prompting his sister Leia (Fisher), the leader of the Resistance, to send her top soldiers to find him. A Resistance fighter pilot named Poe (Isaac) tracks down a partial map that offers clues to Luke’s whereabouts, but he — alongside an ex-stormtrooper named Finn (an enormously likable Boyega) and Rey (Ridley), a lowly scavenger — must work together to keep the information away from the fearsome First Order, which has replaced the Empire as the galaxy’s malevolent aggressor.

    Working with screenwriters Lawrence Kasdan (who co-wrote “The Empire Strikes Back” and “Return of the Jedi”) and Michael Arndt, Abrams brings the same wide-eyed, slightly cheeky tone he previously inserted into the recent “Star Trek” reboots and “Mission: Impossible III.” Although “The Force Awakens” exhibits the original trilogy’s stylistic hallmarks — transitional wipes, an opening explanatory crawl — Abrams introduces a self-aware, warmly nostalgic humor that wryly undercuts this space opera’s life-or-death stakes.

    Which isn’t to say that Abrams is only interested in a fond trip down memory lane. A powerful Jedi, Kylo Ren (Adam Driver), who has been seduced by the Dark Side, wants to help the First Order crush the Resistance, and Rey and Finn have to discover untapped courage if they are to thwart this masked foe. “The Force Awakens” doesn’t always find the right tonal balance between the story’s dire, bittersweet urgency and Abrams’ occasional it’s-only-a-movie impishness, but after the drab performances and emotional inertness of Lucas’ prequels, it’s a relief to see a new filmmaker take over the reins and supply this franchise with a vigour and clarity that have long been missing.

    Because some plot points lead to significant spoilers, it can be difficult to describe the performances for fear of ruining surprises. But of the younger cast, Ridley and Driver acquit themselves most confidently, essaying dynamic new characters that have dimension and heft. Driver plays Kylo Ren with a refreshing unpredictability, revealing the villain’s sinister nature but also his inner conflict and nagging immaturity.

    As for Rey, she has been written as a corrective to years of ineffectual damsels-in-distress, the ones who always need rescuing in blockbusters. But Ridley supplies flesh-and-blood realism, making Rey not just powerfully self-sufficient but also vaguely annoyed that the men around her can’t believe how capable she is. Consequently, Rey is no mere token feminist role model but a deeply fun, instantly likeable hero.

    “The Force Awakens” is less stellar when Abrams tries to incorporate the original trilogy’s central characters. The older actors all do competent work, but the relative enjoyment of seeing them reprise their roles is mitigated by the fact that the filmmakers aren’t quite sure how to fit them into the movie — and that the actors don’t jump off the screen the way some of their younger, hungrier cohorts do.

    The movie is now being screened in Shenzhen. (SD-Agencies)