The motion was filed Friday in Arapahoe County District Court.
Judge William Blair Sylvester issued an order July 20, the day of the shooting, to keep the documents secret without stating the reason. The news organizations say the order means even a complete list of court filings is kept secret.
A spokeswoman for the district attorney's office declined to comment. Holmes' attorneys didn't immediately return a call.
(Copyright 2012 by The Associated Press. All Rights Reserved.)