The film, the story of a massacre in 19th century Utah, also features Tamara Hope, Trent Ford, Lolita Davidovitch and Terence Stamp. Director Cain, co-star Hope, producer Scotth Duthie and executive producer Patrick Imeson will also attend the festival.
A Best Actor Academy Award-winner for 1978's Coming Home and a nominee on three other occasions (1969's Midnight Cowboy, 1985's Runaway Train and 2001's Ali), Voight will receive a Special Grand Prix of the Americas.
Other landmark Voight titles include Deliverance (1972) and recent films with Francis Ford Coppola (John Grisham's The Rainmaker), Jonathan Demme (The Manchurian Candidate), Michael Mann (Heat, Ali), Oliver Stone (U-Turn) and Brian DePalma (Mission: Impossible).
In 2001, he appeared as Lord Croft, father of the title character of Lara Croft: Tomb Raider played by his real-life daughter, Angelina Jolie.
The Montreal World Film Festival runs from August 23 to September 3.