We love Reese Witherspoon's gorgeous green sequin Louis Vuitton dress from the premiere of This Means War - gorgeous!

Watch Reese Witherspoon’s New Movie Trailer

Reese Witherspoon braved the cold for the premiere of her new film, This Means War, in London last night – and didn’t she look stunning? The pretty actress stepped out on the red carpet in a fabulous green sequin Louis Vuitton dress – but no coat or tights, in this weather? We’re thinking she must have needed a nice warm drink when she got inside!

This Means War stars Tom Hardy and Chris Pine as top secret agents who are the best of friends, until they fall for the same girl – the gorgeous Reese! Scroll down to watch the trailer for the movie, out on 17 February.