Mean Girls director Mark Waters and Hostel: Part II director Eli Roth will serve as the next two guest judges alongside regulars Carrie Fisher and Garry Marshall on FOX's moviemaking competition series On the Lot. Waters will guest on the Tuesday, June 26 (8:00-9:00 PM ET live/PT tape-delayed) episode, which will spotlight six comedy short films; and Roth will guest on the Tuesday, July 3 (8:00-9:00 PM ET live/PT tape-delayed) episode, which will spotlight six horror-themed films.

On June 26, the 13 remaining director finalists will be narrowed to 12 and then spilt into two groups of six. The first group of six finalists will each present an original comedy short film to be critiqued by the judges and opened to viewer voting. The following week, July 3, one of the contestants will be told "It's a wrap" and will be eliminated from the competition, and the second group of six director finalists will each present an original horror-themed short film to be critiqued by the judges and opened to viewer voting.

On the Lot is produced by Mark Burnett Productions, DreamWorks Television and Amblin Television. Mark Burnett and Steven Spielberg are creators and executive producers.

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