Earlier this week, insiders claimed Mary Louise Parker had landed the role of the feminist icon in Lovelace, but filmmakers Rob Epstein and Jeffrey Friedman have confirmed to Entertainment Weekly magazine they've signed the Sex & The City star up for the part.
Amanda Seyfried leads the cast as the X-rated actress-turned-anti-porn activist.
Moore dropped out of the film on Tuesday (24Jan12) after she was hospitalised on Monday night (23Jan12).
The actress has subsequently checked in and out of a treatment centre, seeking help for exhaustion and to "improve her overall health".
Sarah Jessica Parker will begin filming on Monday (30Jan12).