What category of film are Prophet's Prey, the 2015 American production, and Italy in a Day, which appeared at the Venice International film festival?
Italy in a Day: Italy in a Day - Un giorno da italiani is a 2014 Italian-British documentary film directed by Gabriele Salvatores. Italy in a Day:  It was part of the Out of Competition section at the 71st Venice International Film Festival. Prophet's Prey: Prophet's Prey is a 2015 American documentary film directed by Amy J. Berg.
documentary