Star Wars Episode IV: A New Hope (aka Star Wars)

Princess Leia hides the plans to the Death Star plans in the memory of an astromech droid, R2-D2, along with a holographic recording. Luke Skywalker rescues Princess Leia from Imperial forces and board the Millennium Falcon. The Rebels analyze the plans and identify a vulnerable exhaust port that connects to the station's main reactor, and that the station can be destroyed through a chain reaction.