Tallulah Harlech

Karl Lagerfeld's period film Once Upon a Time, which stars Keira Knightley as Coco Chanel, is finally here--all 15 glorious minutes of it. The designer-cum-director reportedly gave the actors, including Knightley, Clotilde Hesme, Lindsey Wixson, Stella Tennant, Tallulah Harlech, their lines just moments before shooting--which makes a lot of sense when you watch the film.

New details and a pretty trailer emerge from Karl Lagerfeld's latest directorial effort starring Keira Knightley as Coco Chanel set in Deauville (the site of the first Chanel boutique) in 1913.

Four-year-old Chanel model Hudson Kroenig will be in it too.

We know. The Oscars--and its many parties--were this week's big celebrity style event. But it wouldn't be fair to ignore this week's other red carpets (and front rows). From Dior's most elegant attendees to an amazing Jennifer Lawrence Lanvin dress you probably haven't seen yet, click through for this week's 10 best dressed, excluding the Oscars.

Author of "How to Walk in High Heels", Camilla has written for the UK Times, the Telegraph, Bazaar, and Time Style and Design in the US. She also covered the shows for Vogue UK online, reviewing all cities and hemlengths, and also assisted in the Galliano Studios. Attending fashion shows long before she was invited, London is where she started as a lowly Cinderella Fashionista. This season she is very excited to share some of her adventures with you. Meet London's It girls. They're the ones designers long to dress and they're as happy in the market or clubs as they are on the red carpet. With a different paparazzi culture (and no pesky Kardashians or Real Housewives), these are the girls who fill the gossip mags and blogs across the pond.

Chanel front rows and party lines, especially over the past few years, always draw an elite group of Chanel-clad ladies who might collectively be referred to as “it girls.” Actresses, models, socialites and DJs make up this group but what they all seem to have in common is beauty, great style and some kind of cultural relevance that Karl or someone at Chanel recognizes as fitting with the Chanel brand. That and the ability to look amazing in Chanel and always catch our attention. About two years ago, Chanel threw a dinner party and announced an “official list” of five Chanel ambassadors: Leigh Lezark, Jen Brill, Poppy Delevingne, Vanessa Traina, and Caroline Sieber. Others, like Elisa Sednaoui and, back in the day, Ines de la Fressange, have been casually referred to as Karl’s muses. But, there are still others, like Rachel Bilson, Alexa Chung and newest and youngest member Elle Fanning (!), whose “roles” in the Chanel world were undefined, until now. A tip sheet for last night’s Chanel couture show, revealed by the Telegraph’s Belinda White, literally places bold names expected to attend into a carefully ranked multi-tier system. The categories range from “Japanese celebrities” to “Chanel Ambassadress.” Here they are in what I'm guessing is ascending order.