Blake Lively wowed at the Copenhagen Gala screening of It Ends With Us in yet another floral ensemble on Friday - amid rumours the cast are feuding.

The American actress, 36, has taken on a whirlwind promotional massive on behalf of the movie, a romantic-drama based on the 2016 novel by Colleen Hoover. 

Along with her back-to-back premieres and appearances, the star has donned an ever-revolving wardrobe of couture outfits - all of which are floral themed to match her character Lily Bloom, who owns a flower shop in the film.

And the Copenhagen event was no exception, with the Gossip Girl actress turning heads in a gorgeous nude, gold, and purple floor-length gown by Versace.

Blake looked regal in the showstopping dress, which boasted an embroidered and crystal-encrusted corset bodice.

The Hollywood star styled her long blonde locks in a half-up, half-down do and accessorized with an array of glitzy jewellery.

Blake completed her red carpet look with large bejewelled bangles and stunning blue and gold earrings.

She spoke to fans who were waiting to meet her at the screening and posed with pictures with her co-star Isabela Ferrer, who plays a younger version of Lily.

The actress seemed in high spirits at the premiere, despite the ongoing rumours of a vicious feud between Blake and her It Ends With Us co-star, Justin Baldoni, who plays the character of Ryle.

There have been talks of a falling out between Justin, 40, and Blake, with online sleuths highlighting how the on-screen love interests were not pictured together at the US premiere - while some cast members have blatantly swerved questions about the director. 

She happily took photos with her other costars like Jenny Slate and Brandon Sklenar, but not Justin, who was joined by his wife of 11 years, Emily Baldoni.

Two days later, Blake attended a photo call in London for the film with some of the other stars - but Justin was mysteriously absent.

In addition, the two haven't done any press together in the weeks leading up to the film's release.

Instead, Blake sat down for an interview with her costar, Brandon, last month; she and Brandon also participated in a promotional video with It Ends With Us stars Alex Neustaedter and Isabela Ferrer, but Justin had no part in it.

Eagle-eyed social media users also noticed both Blake and author Colleen unfollowed Justin on Instagram recently.

Now, insiders have revealed the concerning truth about the tensions, telling DailyMail.com that Blake and Justin clashed over his 'dismissive' attitude to her 'input' while they were filming scenes that involved abuse. 

The movie, which hits theaters today and is based off of Colleen Hoover's hit novel of the same name, follows Blake's Lily Bloom, a floral designer who falls in love with neurosurgeon Ryle Kincaid, played by Justin - but soon after they start dating, the romance turns toxic.

The insider claimed that Justin only focused on 'what he believed was the abusive male viewpoint' and had a very 'chauvinistic' approach to the topic.

'During scenes depicting abuse, Justin failed to consider Blake's character's perspective, instead focusing solely on what he believed was the abusive male viewpoint,' they said. 

'His approach was very chauvinistic, creating a tense atmosphere on set.'

The source claimed Justin was 'borderline abusive' on set, and said he 'almost became the character.' 

'Justin almost became the character in the sense that some women on set felt he was borderline abusive to them and that he was unprofessional and unapologetic,' they said.

'Directing a film so serious and so important about domestic abuse without allowing the women to be included in this process is disturbing.' 

The insider alleged that the actor, who also served as director and producer, 'failed to recognize' both Blake and Colleen's roles as a fellow producer and writer. 

And they said he took it 'very personally' when the pair asked for some script rewrites. 

'Without Colleen's book, none of this would have been possible,' they pointed out. 

'Parts of the film were rewritten under the instruction of Colleen - they had to be. He took their script decisions very personally, even though they weren't intended that way.'

They said things only got worse once he began to feel 'ganged up on' by the women on set. 

'His behavior extended beyond the main players,' the source continued. 'Once he felt ganged up on, he became even less empathetic. 

'Now, he's speaking praises, likely out of fear that they'll call him out. He knows it's coming and might try to blame his actions on being a method actor.'

DailyMail.com has contacted representatives for Blake, Justin and Colleen for comment.