Justice League: Superhero mess at bottom of the class
While the tills are still ringing with Marvel's box office takings for Thor: Ragnarok, DC hopes for a massive hit with its first gathering of its biggest superheroes.
A lot is riding on the project after tepid reactions to Batman v Superman: Dawn Of Justice and Suicide Squad.
The film picks up a few months after the devastation at the end of BvS, with the world mourning Superman (Henry Cavill) and a newly awakened threat on the horizon in the shape of Steppenwolf (Ciaran Hinds) and his army of red-eyed flying Parademons.
This prompts Bruce Wayne/Batman (Ben Affleck) to enlist Diana Prince/Wonder Woman (Gal Gadot) to recruit Aquaman (Jason Momoa), Cyborg (Ray Fisher) and The Flash (Ezra Miller). Miller is really the break-out star and the dialogue sparkles the most when it comes from him - he's baffled by people eating brunch and is afraid of bugs, guns and "obnoxiously tall people".
While the screenplay is written by both Chris Terrio and Joss Whedon, Miller seems to benefit the most from the Whedon-esque humour made famous in Buffy The Vampire Slayer and Marvel's Avengers films.
While Zack Snyder is the only director listed in the credits, it was Whedon who filled in when Snyder stood aside after the tragic death of his daughter, guiding it through reshoots and post-production.
But the presence of two directors makes for a slightly disjointed feeling. The light-hearted japes are sometimes crowbarred into almost relentless action and the film slips into the common comic book movie trap of incomprehensible fight scenes.