Sienna goes for the flower power look

However this time Sienna's hippy look was in keeping for her latest role in the appropriately titled Hippy Hippy Shake, which she is currently filming in London.

The 25-year-old actress obviously has a penchant for wearing a garland of flowers in her hair.

She recently sported a similar look - albeit her hair was then blonde - whilst visiting a garden nursery with close pal Rhys Ifans.

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Hippy at heart: Sienna Miller goes for the flower-in-the-hair look on the set of her latest film, Hippy Hippy Shake

The film tells the story of counterculturalist Richard Neville's misadventures in London at the end of the 1960s.

Misadventures is possibly something Sienna knows all about after a summer of never being out of the headlines.

From starting the summer being linked to P Diddy, Sienna has been romantically linked to the 40-year-old Ifans for the past month after the two jetted off to Ibiza together.

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Sienna is obviously fond of the look which she sported weeks ago while out with close pal Rhys Ifans

However Sienna insists she is currently single.

"Rhys and I are just friends, we've known each other for years, we are definitely not sleeping together," she said.

"He's crashing on my couch because his boat is flooded and I'm being the good samaritan and providing him with a roof over his head," she added.

She insisted that the Notting Hill actor is still madly in love with his model girlfriend Iris Palmer, who he's been dating for a few months.

Flowers and broom in hand, Sienna strolls away from the garden nursery with Rhys and jokingly makes a swing for him