Star Wars: Episode V - The Empire Strikes Back

Sequel to the 1977 smash hit follows Luke Skywalker (Hamill) training to be a Jedi from the lovable new character Yoda (Oz), while his friends are pursued by Darth Vader (Prowse/Jones), who himself has a life-changing secret. More epic and easily one-ups "A New Hope", not just with effects and designs, but also story; with all the characters becoming much more three dimensional, plus the introduction of numerous new character that add spice to the overall series. Easily one of the greatest sci-fi films of all-time, as well as one of the greatest sequels of all-time.