His main body of work is with special effects in a wide variety of films, from science fiction to action-adventure. His work on The Fly led to his directorial debut on The Fly II.2 He also won an Academy Award for Special Effects Make-up on The Fly and is well known for his creation of the Gremlins. Walas was also partially responsible for creating the famous sequence in Raiders of the Lost Ark when the Nazis melt from the intense heat created by the Ark of the Covenant.3 Walas created false heads for Ronald Lacey, Wolf Kahler, and Paul Freeman.
Staff (2 June 2022). "From The Fly to A History of Violence: our writers pick their favourite Cronenberg movies". The Guardian. Retrieved July 8, 2022. https://www.theguardian.com/film/2022/jun/02/from-the-fly-to-a-history-of-violence-our-writers-pick-their-favourite-cronenberg-movies ↩
Chris Eggertsen (28 April 2016). "Bring on the Gore: Top Ten Practical Effects in Horror!". Bloody Disgusting. Retrieved July 8, 2022. https://bloody-disgusting.com/editorials/20881/bring-on-the-gore-top-ten-practical-effects-in-horror/ ↩
Kelso Jacks (29 March 2020). "How Raiders of the Lost Ark's Face Melt Was Filmed (Without CGI)". Screen Rant. Retrieved July 8, 2022. https://screenrant.com/indiana-jones-raiders-lost-ark-face-melt-no-cgi/ ↩