The house always wins: Chanel show takes a spin at grand casino glamour

Karl Largerfeld’s Hollywoodification of fashion continues with Julianne Moore and Kristen Stewart adding to the cocktail chic at Paris’s Grand Palais

Clueless? As if! This is the best fashion film ever made

Twenty years on, here are the style lessons we learned from Cher Horowitz and friends – from the power of a white shirt to the perils of flat hair

How to change the world: Greenpeace and the power of the mindbomb

The director and key figures in an award-winning documentary talk about the early days of the activist group and how shocking images were used for global impact

Why not all fashion documentaries should be pretty

Fashion has always enjoyed a love affair with film – from Dior & I to Valentino: The Last Emperor and Mademoiselle C – but how does the industry react when the story veers away from wide-eyed escapism and the tale is far from fabulous?

Dress codes: When smart casual isn’t good enough

Women in flat shoes were turned away from the Cannes red carpet last week – barmy dress codes or all part of the fun?

Rem Koolhaas crafts a spectacular ‘city of art’ for Prada in Milan

A new Roman Polanski film is being shown, Jeff Koons and Donald Judd artworks are strewn about, and Wes Anderson’s designed the kitsch cafe … in a scruffy industrial corner of Milan, Rem Koolhaas and Miuccia Prada have made a dazzling art space, so vast it’s practically a city. Oliver Wainwright is in awe