Scarlett Johansson walked the red carpet in a polka dot dress at the premiere of her latest film Under The Skin Monday at the 2013 Toronto International Film Festival.

The 28-year-old was joined by the movie's director Jonathan Glazer, whom she spoke highly of during interviews.

"It's an amazing experience," she told Toronto's City News of working with Glazer. "I'd advise for any actor if they ever have the opportunity. Jonathan was wonderful to collaborate with, he's so sensitive and so intuitive and very brave and I put absolute and complete trust in him and I think he had the same in me."

In the film, which takes place in Scotland, Johansson plays an alien named Laura who falls to Earth in human form and preys on men.

Scarlett Johansson's Hot Red Carpet Looks

The movie premiere comes just days after Johansson confirmed her engagement to her French beau Romain Dauriac. Johansson joked about the timing with Entertainment Tonight Canada in a Monday report.

"My friend was like 'congrats on timing,'" she said. "Things work out the way they do, maybe it's better just to get it out the way."

Earlier in the night, Evian hosted Johansson at the Under The Skin pre-premiere dinner at Hudson Kitchen. The newly engaged actress arrived with her fiancé wearing her engagement ring.

The two went public with their relationship in November 2012. They have yet to set a wedding date.

Johansson was previously married to actor Ryan Reynolds from 2008 to 2010. The actress discussed her divorce with Vogue in the May 2012 issue and said, "It was devastating. It really throws you. You think that your life is going to be one way, and then, for various reasons or whatever, it doesn't work out."