Scarlett Johansson brought some Hollywood glamour to West London on Tuesday evening with a stunning appearance at the UK premiere of Avengers: Age Of Ultron.

The actress covered up her figure in a multi-coloured Balmain jumpsuit, with her short hair styled in an edgy updo.

She was joined by her large group of A-list co-stars at the screening of the action hero film at Westfield London shopping mall in West London.

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Bringing some colour: Scarlett Johansson stood out in a multi-coloured Balmain jumpsuit as she arrived at the UK premiere of Avengers: Age Of Ultron in London on Tuesday

Hey London! Scarlett waves to fans as she takes to the stage to join her co-stars

Hollywood beauty: Scarlett looked luminous, despite her recent long-haul flight to the UK

Scarlett was one of the last to arrive at the jam-packed screening, where thousands of fans had been waiting all day for a glimpse of their idols.

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Meanwhile, it looked like her co-star Elisabeth Olsen had looked to the film’s genre for fashion inspiration by choosing a black caped dress.

The 26-year-old, who plays the Scarlet Witch, teamed the mini dress with a pair of black platform sandals and carried a box-shaped clutch.

New castmember: Elizabeth Olsen is a new addition to the Avengers cast, having previously cameod in Captain America: The Winter Soldier last year

Sky high: Elizabeth Olsen played up to the superhero theme in a caped black dress and platform sandals

What to sign first: Scarlett was besieged with film memorabilia for her to sign

No leather here: Her colourful outfit was a complete contrast to her all-black costume as the Black Widow

Two-tone: Scarlett went for a punky quiff with her blonde locks, while showing off her darker hair underneath

What’s so funny? Scarlett shares a joke with Jeremy Renner and Paul Bettany

Back in shape: Scarlett was pregnant while she filmed the movie, but has swiftly regained her slim figure

Honk honk: Chris appears to tweak Scarlett’s nose on the red carpet

Aaron Taylor-Johnson, who plays the Scarlet Witch’s twin brother Quicksilver, attended with his director wife Sam.

Sam, 48, looked youthful were her blonde hair in a tousled style and a fitted little black dress, while Aaron wore a velvet jacket.

While the ladies were putting on a stunning show in their ensembles, the men were suitably dapper.

Loved up: Sam Taylor-Johnson accompanied her husband Aaron, who plays Quicksilver in the film

The gang’s all here: Most of the A-list cast turned up to the UK premiere of the action movie

A treat for the ladies: Chris Hemsworth looked suitably handsome in a blue suit, Robert Downey Jnr went for his typical smart/casual mix, while Chris Evans wore a black suit

Australian heart-throb Chris Hemsworth, who plays Thor, looked handsome in a blue trouser suit.

His co-star Jeremy Renner, who takes on the role of Hawkeye, also opted for the same colour for his red carpet appearance, looking very Hollywood with a dark pair of Ray-Bans.

Meanwhile, Paul Bettany (aka Vision) went for a more traditional Englishman style in brown three-piece suit, while co-star Mark Ruffalo also opted for blue.

Earlier on Tuesday, Scarlett told MailOnline she didn’t let gender politics get in the way of her taking on a role like Black Widow.

AVENGERS: AGE OF ULTRON – WHAT THE CRITICS SAY

‘Exuberant, funny, silly and crazily exhilarating. It’s a superhero cavalcade of energy and fun’ – Peter Bradshaw, The Guardian

‘The action is turbocharged from the start, with a forest battle reminding those who lack a PhD in Marvel comic studies of the characters’ powers’ Kate Muir, The Times

‘Whedon brings a depth and wit to his storytelling that you will never find in a Transformers movie. Even so, the final showdown is a little anti-climactic’ – Geoffrey McNab, The Independent

‘It’s a thrilling but occasionally exhausting experience that threatens to overload the sense. Still as you’d expect, the effects are dazzling, particularly when seen through 3D glasses’ – David Edwards, The Mirror

‘Joss Whedon’s film gives you that same pop-culture sugar rush, stacking characters, conflicts, subplots and background treats like tiers of wedding cake – far more than you’d think you could possibly cram into a little under two and a half hours without the whole thing crumbling under the weight of its own calorie count’ – Robbie Collin, The Daily Telegraph

‘It’s a fun film, and like all Marvel cinematic universe films it’s never less than passable – but it’s sitting in the shadow of a predecessor that was always so much more than just okay’ – James Hunt, Den Of Geek

‘Because of all of the high points, it’s easy to forgive the film’s flaws. It’s too busy. The number of characters means that none of them get a real chance to shine’ Oliver Franklin-Wallis, Wired

‘There’s more than enough here to wow a summer blockbuster audience but you get the feeling Whedon is leaving the Avengers movies at just the right time’ – Andy Lea, The Daily Star

Old school style: (L-R) Mark Ruffalo looked a world away from his Hulk character in a navy suit, English actor Paul Bettany went for a more traditional look in a brown three-piece suit, while writer and director Joss Whedon kept it casual in trainers

On the promo trail: The premiere came hours after a press conference attended by the cast

‘I’m looking for [scripts] as an actor looking for material that’s substantial, not a female actor looking for substantial work,’ Scarlett told MailOnline at a press conference at the Corinthia Hotel.

‘What’s great about playing this character is that she’s based in something deep and something that I can hold onto.

‘She’s grounded and very real; she has experienced a lot of trauma and never been able to make active choices for herself and now she finally is, and she’s ready for it but unfortunately, it’s bad timing.’

The look of love: Sam and Aaron looked loved up as usual

We love you Aaron! Taylor-Johnson made some fans’ days as he signed their paraphernalia

Mini me! Chris was thrilled to find a young fan wearing a Thor costume

This is madness! Jeremy looked impressed by the screaming crowd

Her character Black Widow – aka Natasha Romanoff – was first introduced into the Marvel Cinematic Universe in Iron Man 2 as a former Russian assassin who defected to become and agent of S.H.I.E.L.D.

Scarlett – who became a first time mum after the birth of her daughter Rose last September – tells MailOnline that because of the depth of her character, it makes shooting these major movies so much more worth it.

‘These types of things are something we can hold onto and when we’re fighting the good fight and shooting five days to the page over two weeks it keeps us involved and keeps our heads straight,’ Johansson says.

That’s quite a line-up: The all-star cast gathered on stage to talk about the film

Feeling thirsty? Paul offers Scarlett a drink as she joins Jeremy and Elizabeth on stage

Showing some flesh: TV personality Katie Piper wore a racy white lace ensemble

Young love: EastEnders actor Ben Hardy and girlfriend, actress/singer Katriona Perrett

Famous film fans: Former Westlife singer Markus Feehily (left) and violinist Linzi Stoppard

Hear me roar! Actor and former WWE wrestler Dave Bautista struck a fearsome pose, while Avengers star Andy Serkis looked happy by the fans’ response in his home country

Front and centre: Scarlett was centre of the line-up as she posed with her co-stars on the red carpet

Not green with envy: Mark looked like his usual self without his Hulk costume on

Familiar face: Elizabeth chats to her on-screen brother Aaron’s wife Sam

As well as the all-star cast, a host of celebrity fans of the Marvel characters also turned out.

TV presenter Katie Piper showed some cleavage in a daring white lace top and trousers.

Also in attendance was former Westlife singer Markus Feehily and former EastEnders actor Ben Hardy with his girlfriend Katriona Perrett.

Avengers: Age Of Ultron is out in UK cinemas on April 23.

Avengers… assemble: The cast joke around on the red carpet as they wait for Andy and Scarlett to join them

Catching up: Robert chats to Dave and a female companion at the screening

Drawing a crowd: Thousands crowded into Westfield London to get a glimpse of the the film’s stars

Lemme take a selfie! Elizabeth poses with a fan for a selfie on their mobile phone

Overwhelming: Chris looked like he didn’t know what to sign first as fans stuck out their pens and posters

Tony Stark is in the building! Robert hammed it up for the crowd

In a frenzy! Thousands of fans gathered in the shopping centre for a glimpse of their idols

Die-hard fans: Some devotees dressed as their favourite Marvel comic book heroes and heroines

Ready for action: Scarlett as Black Widow, Chris as Thor, Chris as Captain America, Jeremy as Hawkeye , Robert as Iron Man and Mark as The Hulk