Alexander Durie “The Vanishing” is, as its name would suggest, a documentary film about a disappearance. Not just anyone’s disappearance, this project pitched at Visions du Réel (VdR)’s Industry platform is about the disappearance of the filmmaker’s own mother.Senegalese director Rama Thiaw won the Fipresci Critics Prize at the 2016 Berlinale for her documentary “The Revolution Won’t Be Televised,” earning her a name for producing politically-conscious documentaries.