The Force Unleashed was LucasArts foray back into full-on action-adventure Star Wars gaming. It featured a third-person camera and took place between the events of Episodes 3 and 4, or the gap between the two trilogies. Though the game opens up with the player controlling a fully-powered Darth Vader (and thereby making it basically the best of the game) the story follows Starkiller, a young boy that Vader takes as an apprentice after murdering his Jedi father.
The game has excellent music, good visual and some good voice acting work. I would call it a good game that ultimately did not live up to all the hype it was given and suffering a good bit from console-ization for PC fans.