A Canadian producer has sued Disney and Pixar claiming they stole the concept for the animated feature “Inside Out” from a student film he made nearly two decades ago.

Damon Pourshian, the Toronto-based co-founder and creative director of production company Deviate, has sued Pixar, The Walt Disney Co. and a host of its subsidiaries, claiming their 2015 hit “Inside Out” infringed his copyrighted 2000 student film of the same name.