Walt Disney Studios and producer Jerry Bruckheimer are parting ways after more than 20 years of collaborating on such blockbuster film franchises as “Pirates of the Caribbean” and “National Treasure.” The Burbank studio is not renewing its first-look deal with Bruckheimer when it expires in 2014. Bruckheimer is looking to produce more “mature films” that do not fit with the Disney brand, the studio said in an email released late Thursday. The announcement comes on the heels of a delay in filming in the fifth installment of the “Pirates” series and two months after the disappointing box office for Bruckheimer’s “The Lone Ranger” starring Johnny Depp and Armie Hammer. Disney anticipates losing between $160 million and $190 million on the film. Bruckheimer and Disney will continue making adventure movies such as “Pirates” together, but adult dramas in the vein of “Black Hawk Down” and “Pearl Harbor” will be pitched to other studios. “I am thankful to have had the opportunity to work with these amazing people at The Walt Disney Studios, many of whom have become my good friends,” Bruckheimer said in a prepared statement. Shares closed down 71 cents or 1 percent to $65.01 on the New York Stock Exchange.