Matthew Williamson celebrates his 15th year as a leading fashion designer with the release of an anniversary video that blends magical realism with the hypnotic movement of ballet.

Starring Sienna Miller, Poppy Delevingne, and Andrea Riseborough, the video is shot in the light-filled 17th Century Aynhoe Park house in Oxfordshire. Set to a whimsical chorus, the models are seen in haunting repose, stripping off garments to magically reveal new ones underneath, and, at the end, moving seamlessly down a corridor in a choreographed ballet. The movie is meant to capture the mind and imagination of Matthew Williamson, such as his fondness for color, breezy fabrics, and fantasy. Williamson told Savoir Flair exclusively, “The film is about the dreams of my 15-year-old self, imagining this universe full of beautiful girls in these amazing dresses. The wonderfully talented actress Andrea Riseborough plays my mother in the film. I was so thrilled to work with her.” Stick around and see how Andrea Riseborough factors in to the twist ending. It’s cheeky, just like the designer himself.

Click on the icon in the lower-right corner of the video player to watch the film in full screen.

written by GRACE GORDON|video: courtesy of MATTHEW WILLIAMSON