Showtime renews 'Call Girl' for final season

Premium cable network orders fourth season

Showtime has signed up for a fourth and final season of "Secret Diary of a Call Girl."

The premium cable network will run another round of the U.K.-based comedy series, which chronicles the adventures of a British escort played by Billie Piper. The season will be the last for the show, whose fate on both shores had been uncertain in recent weeks.

Season 4 includes eight half-hour episodes continuing the story of Belle, a writer torn between her secret career and her feelings for best friend Ben. The series likely will return early next year.

Piper recently was quoted as saying the series could be adapted into a feature film.

"Diary" is produced by IMG/Tiger Aspect/Silverapples Media/ARG and is exec produced by Michael Foster, Billie Piper and Andrew Zein.