Following this, she traveled, modeled, did theater and took small roles in films.
She landed a role as a flirtatious model in a BBC sitcom, Bedtime (2001).
Craig grew up near Liverpool, and enjoyed going to the theater with his mother and sisters.
Many of his mother's friends were actors, and he felt drawn to the profession. I liked the idea of it—you know, shouting a lot and dressing up and all that," Craig told .
Her mother, Josephine "Jo" Miller, was a South African model and a personal assistant to David Bowie; she went on to manage the Lee Strasberg Theatre and Film Institute in New York City, and then became a yoga instructor. The family moved to Chelsea, London, when Sienna was 18-months-old.
The serial drama enjoyed great critical reception and won several major awards in the year following its broadcast, including two British Academy Television Awards, two Royal Television Society Awards and four Broadcasting Press Guild Awards.
Another important role came in 1998 with the film , a biopic about the artist Francis Bacon (played by Derek Jacobi).
Her breakout film role was as Daniel Craig's love interest in Matthew Vaughn's Layer Cake (2004).
Sienna's film credits include Alfie (2004) (Susan Sarandon, Jude Law), Casanova (2005) (Heath Ledger), Factory Girl (2006) (Hayden Christensen, Guy Pearce) and Interview (2007) (Steve Buscemi).