Movies
Rex Features
According to Variety, the actress will replace Superman Returns star Kate Bosworth, who was previously attached to play the title role.
Paul Coelho's book tells the story of a depressed young woman who is institutionalised after attempting to commit suicide. She rediscovers her love of life after learning that she has a weakened heart and could die within days.
The film will be directed by Emily Young from a script by Larry Gross and Roberta Hanley.
Gellar will next be seen in romantic thriller Possession.
She recently explained her reservations about appearing in a movie version of hit TV show Buffy The Vampire Slayer.
More: Sarah Michelle Gellar, Movies
Movie Reviews
'Extremely Loud & Incredibly Close' reviewTom Hanks features in a long and winding journey through New York after 9/11
At the Movies
David Lynch: 10 reasons to worship himIt's time to celebrate director David Lynch as the BFI screens a season of his films.
Movies Interviews
Max von Sydow 'Extremely Loud' interviewActing legend Max von Sydow on Extremely Loud & Incredibly Close, The Exorcist and Flash Gordon.
Box Office Charts
'The Woman in Black' wins UK box officeThe Woman in Black beats The Muppets and Star Wars at the the UK box office.
