Sydney Sweeney is a knockout in pink at premiere of Christy

by · Mail Online

Sydney Sweeney made sure all eyes were on her as she attended the premiere of her new film Christy at the BFI London Film Festival on Friday.

The actress, 28, looked sensational as she walked the red carpet in a bubblegum pink dress for the glitzy event.

The gorgeous Alexander McQueen gown boasted a delicate lace neckline with shimmering sequins, which flowed into a soft, ruffled skirt and included a pretty train detail. 

It featured a dramatic corset-style satin bodice in pale pink with boning and a ruched bust, highlighting the young star's petite frame.

She wore her caramel blonde locks in loose waves over her shoulders and opted for a soft palette of makeup.

Joining Sydney at the premiere was her co-star Ben Foster along with her brother Trent Sweeney. 

Sydney Sweeney made sure all eyes were on her as she attended the BFI London Film Festival on Friday
The actress, 28, who was representing her new film Christy, looked sensational as she walked the red carpet in a bubblegum pink dress for glitzy event

Trent, who is Sydney's sole sibling, looked dapper in an open collared shirt, leather jacket and smart trousers.

He donned a pair of sunglasses, presumably to hide from the glare of the paparazzi cameras following his famous sister around.

He is a big supporter for his big sister and his Instagram is a testament to the cheerleader role he plays for Sydney as often as possible.

Over the years, Trent, 25, has posted pictures from other premieres and promotional posts for her projects. 

Sydney is unrecognisable in the upcoming boxing biopic, where she plays boxing legend Christy Martin who became America's most well-known female boxer in the 1990s before her husband's attempt to murder her in 2010. 

For the role, Sydney made a remarkable transformation, piling on 30lbs in just three and a half months.

The film made its world premiere to critical acclaim at the Toronto International Film Festival in September and already scores 72% on Rotten Tomatoes.

The gorgeous Alexander McQueen gown boasted a delicate lace neckline with shimmering sequins, which flowed into a soft, ruffled skirt and included a pretty train detail
It featured a dramatic corset-style satin bodice in pale pink with boning and a ruched bust, highlighting the young star's petite frame
She wore her caramel blonde locks in loose waves over her shoulders and opted for a soft palette of makeup
Joining Sydney at the premiere was her co-star Ben Foster along with her brother Trent Sweeney
Trent is a big supporter for his big sister and his Instagram is a testament to the cheerleader role he plays for Sydney as often as possible
During Friday night's premiere, The White Lotus star happily took selfies with fans, blew kisses and posed with her younger brother
For the role, Sydney made a remarkable transformation piling on 30lbs in just three and a half months
The film made its world premiere to critical acclaim at the Toronto International Film Festival in September and already scores 72% on Rotten Tomatoes

Sydney told Deadline about putting on weight saying: 'I absolutely loved it. I truly felt Christy’s power as I transformed. 

'And I really enjoyed being able to train and work with incredible boxing coaches and weight trainers and nutritionists that helped me get to the place that I was for Christy.'

To achieve her metamorphosis, the Hollywood fixture underwent a staunch training regimen that involved three workouts a day for three months.

She was joined by the boxing legend at TIFF, telling press she ate 'a lot of Chick-fil-A, a lot, a lot of Smucker's, a lot of milkshakes' and 'a lot of protein shakes' while preparing for the role.

The American star added: 'But it was incredible being able to completely embody such a powerful woman. I felt even stronger. It was truly inspiring.'