Ghosthunters: On Icy Trails (German: Gespensterj?ger - Auf eisiger Spur) is a 2015 German-Austrian-Irish comedy film starring Anke Engelke, Milo Parker and Bastian Pastewka as the voice of Hugo. It is based on the novel Ghosthunters and the Incredibly Revolting Ghost! By Cornelia Funke.