She has caused a stir with rumours she is dating her former co-star Zac Efron.

And Alexandra Daddario, 32, put on an appropriately attention-grabbing display when she headed to the world premiere of Rampage, in Los Angeles on Wednesday.

The Percy Jackson film series star displayed her eye-popping cleavage in the plunging neckline of her stunning Bardot ball gown.

Impossible to miss: Alexandra Daddario was a vision in an elegant ball gown at the world premiere of Rampage, in Los Angeles on Wednesday

Cinched at the waistline, the impressive skirt of the gown billowed out to accentuate the New York 𝐛𝐨𝐫𝐧 beauty’s hourglass shape.

The True Detective star showed off her quirky sense of style as she accessorised her shimmering patterned dress with a heptagon-shaped clutch bag.

Alexandra wore deftly touches of make-up to draw attention to her beautiful features and she styled her brunette tresses in a poker straight fashion.

Busty appearance: The Percy Jackson film series star displayed her eye-popping cleavage in the plunging neckline of her stunning Bardot ballgown

Give us a twirl: Cinched at the waistline, the impressive skirt of the gown billowed out to accentuate the New York 𝐛𝐨𝐫𝐧 beauty’s hourglass shape

The actress rubbed shoulders with the great and the good of the showbiz world at the star-studded premiere including her Baywatch co-star Dwayne Johnson.

Rampage tells the story of primatologist Davis Okoye (Dwayne or ‘The Rock’) who shares a deep connection with the intelligent gorilla George.

The once gentle creature begins to cause chaos in North America after a genetic experiment goes wrong and Davis takes it upon himself to save the monkey he loves.

Alexandra recently has grabbed the attention of headlines because of her rumoured romance with hunky Zac Efron.

Finishing touches: Alexandra wore deftly touches of make-up to draw attention to her beautiful features and she styled her brunette tresses in a poker straight fashion

On the party scene! The actress rubbed shoulders with the great and the good of the showbiz world at the star-studded premiere

People pleaser! The brunette beauty beamed brightly as she posed for cute selfies with her waiting fans at the premiere

The movie stars first got tongues wagging when they starred in the Baywatch reboot together last year.

Alexandra put the rumours to bed about a blossoming romance when she insisted the pair were just ‘good friends’.

But it seems Zac got fans’ hopes up as he shared a heartfelt message to pay tribute to the Baywatch beauty on her 𝐛𝐢𝐫𝐭𝐡day on Instagram in March.

‘Happy 𝐛𝐢𝐫𝐭𝐡day to one of the the most real, down to (earth emoji), stunning, intelligent, creative, loving, and most rare Pokémon ever created #alexdaddario,’ wrote the actor.

Amazing looks: The actress showed off some serious skin thanks to the sweeping neckline of her ballgown