There is no doubt that Baz Luhrmann has a signature style. You might call it visual magnificence – his films are like works of art. But doing so would understate his ability to create themes that are striking in their individuality and tell stories in a way that stays in your mind.

These are the three ingredients of a great ad, are they not? But let’s be honest, there’s a fourth – money. Luhrmann’s productions are never less than epic.

The Secret Life of Flowers, Luhrmann’s four-minute film for H&M’s designer collaboration with Erdem is epic. It’s text book Lurhmann. It’s also provocative – a love triangle story between a bisexual boy and a brother and sister, the plot facilitated by a woman whose style is outre to say the least.

And yet to Luhrmann, it’s a classic ad with a big idea.

“In this case, the big idea is Erdem himself,” Luhrmann explains in the making off video. “He is, in fact, the script and the subject. And so my job was to craft a narrative that reflected his sensibility.”

“What Baz wanted to express,” added production designer and producer, Catherine Martin, “were some of the characteristics of Erdem’s fundamental aesthetic and the romantic, floral nature of the clothes.”

The ad promotes H&M’s newest designer collaboration – with Erdem Moralioglu, who founded Erdem in 2005. He has designed a women’s collection for H&M that will “reflect and reinterpret the design themes from some of his most celebrated collections, playing with prints, textiles and his delicate craftsmanship,” the release explains.

Erdem has also create his first men’s range, which is part of the collaboration.

The film was announced with a 30-second teaser in July. It launched on October 24 in advance of the collection, which is available in-store and online from November 2.