Sienna Miller to launch new fashion label with sis

British model-turned actress Sienna Miler is collaborating with her sister Savannah, a fashion designer, to launch a new fashion label.

However, the Factory Girl star’s older sibling is determined that she won’t ride on her sisters’ success.

“Of course people will say I’m jumping on Sienna’s bandwagon and cashing in on her fame but this is something we have talked about for years,” the Daily Express quoted Savannah, as saying.

The 25-year-old is also excited to work with Savannah, who has been closest person to her.

“Sav has been the closest person to me my whole life. Now I’m working with her – what could be more fun,” she added.