10/23/2013 09:22 am ET Updated Dec 06, 2017

Kat Dennings' Low-Cut Gown Steals The Show At 'Thor: The Dark World' Premiere

Kat Dennings wowed at the world premiere of "Thor: The Dark World" in London last night (Oct. 22), giving the film's female star, Natalie Portman, a run for her money.

Dennings rocked a low-cut gown by Lanvin as she posed on the red carpet. The velvet and gold dress suited her old Hollywood style, which was accentuated with a bold red lip.

The 27-year-old actress was joined by co-stars Portman, Chris Hemsworth, Tom Hiddleston, Stellan Skarsgard and Idris Elba. (Quite the good looking bunch!)

See Kat's "Thor" look below:

kat dennings

kat dennings

kat dennings