The 2014 film Gone Girl was an immediate hit and Reese Witherspoon, who produced the film got many accolades for it.
According to documents obtained by TMZ, Lesley Weller claims that she sent a copy of her screenplay - called Out of the Blue - to a script consultant in 2005, and that the book Gone Girl, which came out almost a decade later, was copped from her screenplay.
She claims that both contain a central twist where the wife is not her regular, nice and normal self, but is actually a psychopath who sets up her husband. Besides Witherspoon, Weller is also suing the author Gillian Flynn and movie's director David Fincher.
Author Gillian Flynn and director David Fincher are also being sued.
The woman claims that there are several similarities with her screenplay and the movie, including how they both are based on a married couple's relationship where the husband and wife are drifting apart.
She is claiming that the movie lifted from the book, which allegedly stole from her screenplay.
It's unclear how much Weller is seeking the lawsuit. "But the plot turns and by the end, the husband and wife are both hated" and that her screenplay includes a scene with a hammer which leads the audience to believe the husband might hurt his wife, much like the movie does.