I understand this may be a movie question, but I know alot of engineering majors who love Star Wars, so I assume it's fair game to ask...In an atmoshere, control surfaces with fluid flowing over them are what control the roll, pitch and yaw of aircraft, yet these control surfaces are useless without an atmoshere (in space). In Star Wars, spacecraft manage to change attitude without an atmoshpere and without any apparent thrust nozzles...the reason why i ask is because Star Wars fans like to give scientific and logical answers to Star Wars (despite the technology does not exist, or at least not yet)
:^) thanks everyone