before her professional acting career, miller worked as a photographic model. she signed with tandy anderson of select model management london. she modeled for coca-cola, italian "vogue", and posed topless in the 2003 pirelli calendar. miller signed a two-year contract with pepe jeans london. the jeans ad campaign first appeared in magazines march 2006. in february 2009, hugo boss fragrances said that miller would be the new ambassador for their "boss orange" women's perfume.