The Toronto International Film Festival has announced 25 world premieres in its line-up of documentaries screening across various programmes.

Among the debuts screening in the Real To Reel programme are An Inconvenient Truth director Davis Guggenheim's It Might Get Loud, a celebration of the electric guitar featuring three virtuosos, Led Zeppelin's Jimmy Page, U2's The Edge and Jack White of The White Stripes; Robert Kenner's Food Inc., an exploration based in part on the reportage of Fast Food Nation author Eric Schlosser; and Dan Stone's At The Edge Of The World, a profile of environmentalist Paul Watson, controversial founder of Greenpeace and Sea Shepherd.

Screening in the Masters programme is the North American premiere of Agnes Varda's Les Plages D'Agnes, the autobiographical film by the legendary auteur.

Screening as a work in progress in the Mavericks programme is Paul Cronin's A Time To Stir, a four-hour exploration of the 1968 student strike at New York's Columbia University. The film will be presented on the last day of the festival followed by a discussion with three participants of the strike, including former Weather Underground member Mark Rudd.

Other prominent titles in Real To Reel include Kevin Rafferty's Harvard Beats Yale 29-29, featuring actor Tommy Lee Jones, who played in the game between the Ivy League rivals; The Biggest Chinese Restaurant In The World by China's Weijun Chen, a look at the West Lake Restaurant in Changsha, China, with 300 chefs and seating for 5000, the largest restaurant in the world; and Yes Madam Sir, Megan Doneman's Australian-Indian coproduction about India's first female police officer.

Screening as Special Presentations are Chai Vasarhelyi's profile of African musician Youssou Ndour, Youssou Ndour: I Bring What I Love (world premiere); and Matt Tyrnauer's profile of Italian fashion designer and icon Valentino, Valentino: The Last Emperor (North American premiere).

'Documentary-making continues to flourish,' said TIFF Documentary and Mavericks programmer Thom Powers in a statement. 'Every year there are more films that command the big screen. There has been a short-sighted focus on the recent lack of a documentary blockbuster. In the larger picture, more docs are getting funded and released theatrically than ever before.'