 During the late 80s Kanner sued the producers of the film "Die Hard" claiming that they stole the idea for that movie from this film (he lost).His final known acting role was in "Nightfall" (released in 1988), a science-fiction film based on the Isaac Asimov story of the same name.He settled back in London in 1996 and was working on a new film project called "J R Profitt" that never came to fruition.