Lily Collins & Suki Waterhouse Sandwich in Sam Claflin at 'Love, Rosie' Premiere

Lily Collins is red hot and backless in a gorgeous dress at the premiere of her film Love, Rosie held at the Odeon West End on Monday (October 6) in London, England.

The 25-year-old actress was joined on the red carpet by her co-stars Sam Claflin, Suki Waterhouse, and Tamsin Egerton.

The film is set to hit theaters in the UK on October 22 – we can’t wait to check it out when it hits theaters in the States!

Here’s a synopsis: Rosie and Alex have been best friends since they were 5, so they couldn’t possibly be right for one another…or could they? When it comes to love, life and making the right choices, these two are their own worst enemies.

Earlier in the day, Lily was seen doing some promo work for the film at ITV Studios.

FYI: Lily is wearing a Balmain jacket and skirt with Christian Louboutin shoes and EF Collection ring at the studio. She’s wearing a Solace London dress with Charlotte Olympia shoes and EF Collection rings at the premiere. Suki is wearing a Lanvin dress, Jimmy Choo bag, and a vintage coat.

15+ pics inside of Lily Collins…