Writing Jim Aupperle Acting Making Magic: The Artistry of Karel Zeman 2020 Troll Empire Self 2015 Ray Harryhausen: The Early Years Collection Self 2005 Other Credits Mad God Compositing Artist 2021 League of Gods Visual Effects Director 2016 Drag Me to Hell Visual Effects Technical Director 2009 Leapin' Leprechauns Visual Effects Supervisor 1995 The Nightmare Before Christmas Visual Effects Camera 1993 Frog and Toad Together Lighting Artist 1987 Troll Visual Effects 1986 Frog and Toad Are Friends Lighting Artist 1985 Ghostbusters Visual Effects Camera 1984 The Age of Mammals Writer 1981 Planet of Dinosaurs Visual Effects 1977 Agent-readable