> The Avengers: Thor, Captain America battle aliens - video
> The Avengers premieres in Los Angeles - picture gallery
Digital Spy gives ten tantalising teasers for Joss Whedon's superhero movie below. If you don't want any spoilers, then turn back now...
1. Remember the glowing blue tesseract energy cube from Captain America and teased in the post-credits scene of Thor? It plays a key part here, as Loki uses its power to open up a portal to another world.
2. Notable superhero scraps: Hulk vs. Thor, Hawkeye vs. Black Widow, Thor vs. Iron Man vs Captain America!
3. Thor's Jane Foster (Natalie Portman) does make an appearance, albeit in photographic form.
4. There's romance for Tony Stark with Pepper Potts (Gwyneth Paltrow in a barefoot performance), but also hints of a Bruce Banner bromance.
5. Agent Coulson outs himself as a bit of a fanboy, telling Steve Rogers he has a collection of mint condition Captain America trading cards.
6. Loki's alien army aren't the Skrulls, instead they're the Chitauri, who first appeared in Marvel's The Ultimates comic.
7. Marvel legend Stan Lee gets a customary cameo but not, as this set picture suggests, in conversation with Steve Rogers. Also, keep an eye out for Harry Dean Stanton, who spares Bruce Banner's embarrassment by handing him a pair of pants.
8. A Loki vs Hulk face-off will bring the house down. We laughed. Hard.
9. There's a very cool Avengers 'hero shot' towards the end of the movie, with Jeremy Renner's Hawkeye front and centre. You'll want that image as on your desktop!
10. Yes, there's a post-credits scene. It's set in space and features classic Marvel villain [name redacted].
Marvel Avengers Assemble opens in UK cinemas on April 26. It releases as The Avengers in the US on May 4.
Watch a trailer for The Avengers below: