 CONT: When Doo and Loretta are in the radio station, after the desk  jockey said he had listened to the record, it shows Loretta picking  up the envelope and handing it to Doo. He lifts the flap, the scene  goes to the desk jockey and in the next scene it pans back to Doo  opening the flap again, only this time its licked and sealed with  the metal clasp.