Juliette Binoche is the latest star in talks to join Gareth Edwards' Godzilla reboot.
Aaron Taylor-Johnson, Elizabeth Olsen and Bryan Cranston have previously been linked to the project but details of the plot are being closely guarded.
Now Variety says that The English Patient star Juliette is in negotiations for another unknown role.
It was previously reported that Aaron would play a soldier, while Breaking Bad's Bryan is negotiating the role of his step-father.
Details about the movie are being kept under wraps, until the script - which has been written by Max Borenstein and Frank Darabont - is finalised. It is expected to be released in 2014.
Writer Frank has said he wants a Godzilla which returns to its roots as a "terrifying force of nature" and to expect "plenty of monsters."