Leslie Mann In Giles - 'The Other Woman' London PremiereLeslie Mann joined Kate Upton at the premiere of ‘The Other Woman,’ hosted tonight (April 2) at the Curzon Mayfair in London, England.

Whereas Kate was the epitome of old Hollywood elegance, Leslie painted her glam look with a bit of artsy mod flair, donning a Giles Fall 2014 frock.

The white design was punched through with an exploded branch-like pattern and complemented by a bib neckline of sparkling black paillettes.

A knotted low updo and a bright coral-orange lip completed this red-carpet outing, which was far more chicly impactful than her Amsterdam look. Would you agree?

Credit: Style.com & Getty