Movies
Rex Features
The Transformers actress will reportedly play the role of Aspen, a mermaid rescued from the sea as a child.
The character only learns that she is from an underwater species when she wins a race and displays an unusual response to a drug test.
An insider said: "Several writers have been brought aboard to revamp the script as a vehicle for Megan, who officially signed on for the project this week."
Fox's new film How To Lose Friends And Alienate People is released in cinemas on October 3.
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.
