 Jessup's visual effects art direction credits include, "Innerspace" (for which he won an Academy Award), "Hook" (nominated for an Academy Award), "The Hunt for Red October" (with Steve Beck), "Ghostbusters II", "Joe Versus the Volcano" and "Fire in the Sky".In 1985, Jessup won an Emmy Award for best visual effects for "", produced by Lucasfilm, Ltd. for ABC Television.Harley Jessup began his career at Korty Films designing animated short films for "Sesame Street", including "The Adventures of Thelma Thumb".