As part of "Star Wars"s 20th anniversary celebration in 1997, "The Empire Strikes Back" was digitally remastered and re-released along with "Star Wars" and "Return of the Jedi" under the title "Star Wars Trilogy: Special Edition". Lucas took this opportunity to make several minor changes to the film. These included explicitly showing the Wampa creature on Hoth in full form, creating a more complex flight path for the "Falcon" as it approaches Cloud City, digitally replacing some of the interior walls of Cloud City with vistas of Bespin, and replacing certain lines of dialogue. A short sequence was also added depicting Vader's return to his Super Star Destroyer after dueling with Luke, created from alternate angles of a scene from "Return of the Jedi". Most of the changes were small and esthetic. Some fans believe that the changes to the film were less detrimental than that of the other two entries in the trilogy.