Secret Diary of a Call Girl is a British drama television series that aired from 27 September 2007 to 22 March 2011 on ITV2, based on the blog and books by the pseudonymous Belle de Jour.

Hannah, as the main character, also narrates the series, sometimes through voiceovers but more frequently by breaking the fourth wall.

Series 2 and 3 rely heavily on story arcs, mainly in the form of Hannah's romances, with Alex and Duncan respectively.

The rights to the blog were bought by Silverapples Media (Avril MacRory and Paul Duane), who co-produced the series with Tiger Aspect Productions.

The song runs whilst the intertitle plays, showing Belle applying make-up and getting dressed, interspersed with shots of urban London.

[citation needed] The filming of series 3 began at the start of 2009, once Piper had recovered after the birth of her son in October 2008.

[citation needed] Robert Greenblatt, Showtime's president of entertainment, initially considered buying format rights and recasting it with American actors, but he ultimately decided that the original was "fantastic"; Greenblatt also noted that "it's very hard to find American actresses who are comfortable doing nudity.

The series was mainly well received by critics, with Tim Goodman of The San Francisco Chronicle saying, "there's surprise at how much you've underestimated its quality.

"[14] It was less well received, however, by The New York Times, which said, "Secret Diary has amusing touches, but not enough to sustain an entire series.

"[15] Whilst reviewing Series 3 of Secret Diary of a Call Girl, Gerard O'Donovan of The Telegraph opined that the show focuses too much on Piper's character, saying "All the characters, apart from Belle (Piper), are about as two-dimensional as cardboard cut-outs – and no more engaging.

[17] Piper hit back at the claims saying, "We've only been exposed to the drug-fuelled, sex traffic side – but the fact is, there are middle-class, cultured, well-read women who take part in this job.