TORONTO - Projects from celebrated directors Steven Soderbergh and Jane Campion and actors Matt Damon, Ricky Gervais, Edward Norton and Clive Owen are among the films set to unspool at this year's Toronto International Film Festival.

Organizers announced four galas for the annual movie marathon, including the world premiere of Gervais's comedy, "The Invention of Lying," and "Precious," featuring musicians Mariah Carey and Lenny Kravitz.

Other films set to screen include Soderbergh's "Informant!", starring Damon as an employee at an agri-industry giant, who exposes a price-fixing conspiracy to the FBI.

Campion's "Bright Star" is about the secret love affair between poet John Keats and an outspoken student.

Other world premieres include Norton starring in "Leaves of Grass," in which he plays a pair of twins -- one an Ivy League classics professor, the other a marijuana grower.

Owen stars in "The Boys are Back" about a widower who must raise two sons alone.

TIFF runs Sept. 10 to 19.