Marvel has released a final action-packed trailer ahead of the release of the London-filmed Avengers: Age of Ultron this month.

The highly-anticipated superhero sequel directed by Joss Whedon hits cinemas on Thursday, April 23.

Among the stars returning are Robert Downey Jnr as Tony Stark/Iron Man, Chris Evans as Captain America, Scarlett Johannson's Black Widow, Chris Hemsworth's Thor, Mark Ruffalo's Hulk and Samuel L Jackson as Nick Fury.

Filming took place last year, largely at south London’s Shepperton Studios but also at other locations including Brockley’s Rivoli Ballroom and Dover Castle.

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It is nearly a year to the day when the Marvel crews descended on the Rivoli, where actors were seen in 1940s army costumes in what is believed to be a 1940s flashback scene featuring Steve Rogers/Captain America (played by Chris Evans) and Londoner Hayley Atwell’s Peggy Carter.

This extended UK teaser trailer has a cheeky glimpse of the Rivoli at 1min 56s but, be warned, blink and you’ll miss it.

And in this video, Aaron Taylor-Johnson - husband of Croydon-born, Goldsmith graduate Fifty Shades director, Sam Taylor-Johnson - and Elizabeth Olsen and director Joss Whedon discuss the film’s new characters, Quicksilver and Scarlet Witch