National Lampoon ; Warner Bros. Pictures ; a Matty Simmons production ; a Harold Ramis film ; screenplay by John Hughes ; produced by Matty Simmons ; directed by Harold Ramis
New Line Cinema presents a Safran Company/Atomic Monster production ; directed by James Wan ; screenplay by Chad Hayes & Carey W. Hayes & James Wan and David Leslie Johnson ; produced by Peter Safran, Rob Cowan, James Wan