Although the film did well at the box office , it was panned by critics due to the use of costumes and puppetry for the gorillas in the film. The film begins with TraviCom employee Charles Travis ( Campbell ) , the ex-fiancï¿½ of Dr. Karen Ross ( Linney ) , testing a diamond-powered communications laser in a remote part of the Congo situated on a dormant volcano .
Charles Travis is played by Bruce Campbell in Congo .