Jennifer Aniston and fiancé Justin Theroux attended the 2012 American Cinematheque Tribute, which honoured Ben Stiller for his significant contributions to the film industry, at the Beverly Hills Hotel yesterday evening.

The happily engaged couple wore matching black and white looks à la Posh and Becks: the Spice Girl years.

He wore a classic tux; Jennifer wore a sleek Valentino gown.

I was surprised that Jennifer picked this black strapless gown with a white bow, because it wasn’t all black.

Even her Valentino clutch was white.

While I appreciated the soon-to-be Mrs Theroux side-stepping out of her all-black comfort zone, I wish she’d styled her hair into a chic updo or even a classic chignon with this look.

Do you agree?

This gown made me think of Anne Hathaway’s 2007 Valentino Oscar gown.

You can buy Jennifer’s Valentino gown from Stylebop US and

Credit: Getty