Jon Stewart on "The Daily Show."
Comedy Central Jon Stewart on "The Daily Show."

Following a summer-long hiatus from hosting "The Daily Show," Jon Stewart reclaims the anchor's chair Tuesday night just before taking his directorial debut "Rosewater" to the Toronto International Film Festival later this week to share footage and pitch foreign buyers.

Repping the film's international rights, Sierra/Affinity courted international buyers on the Cannes market last May. UTA is handling North American rights. Financed by OddLot Entertainment, "Rosewater" wrapped production in Jordan in mid-August. Stewart's film is a screen adaptation of Maziar Bahari's 2011 memoir "Then They Came for Me: A Family's Story of Love, Captivity and Survival."

Bahari, played here by Gael Garcia Bernal, is an Iranian-Canadian journalist who was detained in Tehran for 118 days during the 2009 presidential election in Iran. Stewart, who covered Bahari's imprisonment extensively on "The Daily Show," adapted the screenplay himself from the memoir, which was co-written by journalist Aimee Molloy.