The Walt Disney Co. and Henson Associates on Tuesday reached an out-of-court agreement that allows Disney to open two Muppet shows at Walt Disney World in Orlando, Fla. The amicable resolution puts to rest a sensational federal court dispute that had pitted the producer of Micky Mouse against the owner of Kermit the Frog. The two sides dismissed their lawsuits against each other and agreed to an 18-month license that can be extended for another 31/2 years. Financial terms of the settlement were not disclosed. Disney called the legal fight the result of a "serious misunderstanding," and apologized. A trial in Henson's copyright-infringement lawsuit filed against Disney earlier this month in federal court was set to begin May 13.