Here is an article from The Mirror on Piper's career:
BILLIE THE KID GROWS UP AFTER SLUMMING IT WITH CHRIS EVANS, BILLIE PIPER'S CAREER HAS GONE INTO OVERDRIVE.
By BETH NEIL

JUST two years ago, she spent her time downing pints of lager in the pub, piling on the pounds and looking like she'd just rolled out of bed. But Billie Piper's down and out days are well and truly over.
She's ditched the frumpy clothes, restyled the bird's nest of a hairdo, shed the excess weight and even got rid of husband Chris Evans. And the transformation from scruffbag to sex kitten has done wonders for the 23-year-old's career.
After playing a huge part in the revival of BBC1's smash hit drama Doctor Who and winning critical acclaim for her portrayal of the Doc's sidekick Rose Tyler, Billie has become one of our hottest young talents.
Today, she makes her big screen debut alongside Dougray Scott and Emilia Fox in Simon Shores Things To Do Before You're 30. The story tells the tale of a group of people trying to live their complicated adult lives in 21st-century London, while desperately clinging on to their youth.
http://www.mirror.co.uk/tvandfilm/theticket/tm_objectid=17162042%26method=full%26siteid=94762%26headline=billie%2dthe%2dkid%2dgrows%2dup%2d-name_page.html