Eli Roth began his big-screen career recycling riffs from Sam Raimi’s The Evil Dead in 2002’s Cabin Fever. More than a decade later, this 2013 offering (which will crawl on to UK DVD this month after a fleeting theatrical platform) finds him regurgitating Ruggero Deodato’s Cannibal Holocaust and Umberto Lenzi’s Cannibal Ferox, with added female genital mutilation. An idealistic NYU student travels to the Amazon to protest against deforestation and ends up imprisoned by the tribe she planned to protect. Flat-pack acting, frat-boy screenwriting (the portrayal of activists is spitefully dumb) and retro gore combine with smug throwback neocolonialist racism and unfunny jokes about diarrhoea, dope and Scooby-Doo. Thanks, Eli.