He is a film and video-maker originally from Detroit, where he studied anthropology. His own moving image work, „Midden” (2007), „Physical Changes” (2009), has been exhibited at various venues. He has been programming for the Ann Arbor Film Festival (AAFF) since 2007, and has been the AAFF Program Director since 2010. Dinnell was the Film Programmer for the University of Wisconsin-Milwaukee Union Theatre and was Program Director of the Media City Film Festival (Canada). He was co-programmer of the Fall 2014 Flaherty Film Seminar NYC series at Anthology Film Archives (New York) and has curated special film programs for the 2014 Bienal de la Imagen en Movimiento (Buenos Aires), Etiuda &Anima Film Festival in Krakow; and others.