Fans of either (or both) media empires will be quick to tell you they are NOT the same thing. There are books published about this sorta thing. But if you need a quick crib sheet, here you go:
Star Trek
Characters: Captain Kirk, Spock, Scotty, Lt. Hikaru Sulu (he changes rank depending on where you are in the story)
Famous lines: Live Long and Prosper, Beam me up, Scotty.
Bonus: Directed by JJ Abrams, who does Alias and Lost. Oh, and Winona Ryder plays Spock's mom.
Star Wars Characters: Luke Skywalker, Princess Leia, Yoda, Chewbacca, C3PO, R2D2, Darth Vader Famous lines: May the Force Be With You, Luke, I am your father Bonus: See the arrested development link from our previous post.