What is the fine-grained topic of the following text: EXCLUSIVE: Ed Zwick is in talks to helm Pawn Sacrifice, the drama that will star Tobey Maguire as troubled chess wiz Bobby Fischer, the prodigy who captured who captured the world’s imagination when he won the World Chess Championship over Russian Boris Spassky in a Cold War-era match that drew international media attention. Only return the topic.
Ed Zwick potentially directing "Pawn Sacrifice," a film starring Tobey Maguire as chess prodigy Bobby Fischer.