sentences:  The 22nd edition of the event is scheduled for April 2021.The festival is a direct descendant of a program put on at the University of Illinois at Urbana–Champaign in 1997 called Cyberfest which used the supposed birthday of HAL (the computer in the film "") to highlight the University's involvement in the history of computers and computing.The film was to be shown as part of Cyberfest, Roger Ebert had agreed to host and actor Gary Lockwood was a special guest.