"Twilight" star Kristen Stewart has reportedly backed out of starring in a romantic drama directed by Nick Cassavetes.

The embattled actress, who has experienced a media and fan backlash after cheating on boyfriend and "Twilight" co-star Robert Pattinson with married director Rupert Sanders, was set to co-star with Alex Pettyfer in the forthcoming movie "Cali", but she has reportedly quit the project.

GossipCop.com has mentioned Amber Heard as a possible replacement for Stewart. An official announcement should be coming later this week.