JK Rowling, the millionaire author behind the Harry Potter series of books and blockbuster films, will today speak out about her experience of media intrusion.
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J K Rowling and Sienna Miller will give evidence at the inquiry Photo: PAUL GROVER/REX
The author, who shot to fame and fortune after her Harry Potter stories captured the imagination of a generation of young readers and cinema-goers, has previously complained about photographs being taken of her children.
Her characters in the Potter series include an unscrupulous tabloid journalist called Rita Skeeter - played by Miranda Richardson in the films - who had a magical pen that could automatically translate interviews into tabloid-speak.
Miller has starred in films including Layer Cake, Alfie and Stardust. Her personal life, including a relationship with actor Jude Law, has attracted considerable press attention.
Mosley - who won £60,00 in privacy damages over a News of the World story claiming he took part in a "Nazi orgy" - will also give evidence at the hearing at the Royal Courts of Justice.
Today's proceedings will begin with a secret session, closed to the public and journalists, when the inquiry hears from an unnamed man known as "HJK".
A transcript of evidence given by the man, whose phone was allegedly hacked after he began a relationship with a well-known figure, will be posted online later.
Prime Minister David Cameron set up the Leveson Inquiry in July in response to revelations that the now-defunct News of the World commissioned a private detective to hack murdered schoolgirl Milly Dowler's phone after she disappeared in 2002.
Today's proceedings will begin with a secret session, closed to the public and journalists, when the inquiry hears from an unnamed man known as "HJK".
A transcript of evidence given by the man, whose phone was allegedly hacked after he began a relationship with a well-known figure, will be posted online later.
Prime Minister David Cameron set up the Leveson Inquiry in July in response to revelations that the now-defunct News of the World commissioned a private detective to hack murdered schoolgirl Milly Dowler's phone after she disappeared in 2002.
