Designers and sisters Savannah Miller (left) and Sienna Miller during a rehearsal for their Twenty8Twelve spring/summer London Fashion Week show, at the Old Sorting Office in central London Stock Photo - Alamy

Sienna and Savannah Miller design catwalk show - The San Diego Union-Tribune

Nervous Sienna Miller makes London Fashion Week debut as her THREE mums turn up for support

Twenty8Twelve by s. miller Takes London Fashion Week

Nervous Sienna Miller makes London Fashion Week debut as her THREE mums turn up for support

Nervous Sienna Miller makes London Fashion Week debut as her THREE mums turn up for support

Jude Law takes pride of place in front row as he supports Sienna Miller at London Fashion Week

Twenty8Twelve by s. miller Takes London Fashion Week

Sienna and Savannah Miller design catwalk show - The San Diego Union-Tribune

Sienna and Savannah Miller design catwalk show - The San Diego Union-Tribune

Nervous Sienna Miller makes London Fashion Week debut as her THREE mums turn up for support