Cock & Bull: According to Variety, Sarah Polley and Chris O'Donnell are in talks to topline Cock & Bull, a bigscreen adaptation of the novel by Brit scribe Will Self.

The picture marks the feature debut of helmer Matt Nix, who penned the screenplay.

Nix calls "Bull" a "dark comedy about an ordinary middle-class woman who, while in a stifling marriage to an alcoholic husband, transforms into a man."