Since no one answered my question about who says "I have a bad feeling about this" in each episode, I'll give the answer myself.
Episode I: Obi-Wan says it when they enter the meeting room on the Trade Federation ship at the beginning of the film.
Episode II: Anakin at the Geonosis Arena as the monsters are coming out to kill them.
Episode III: Obi-Wan as him and Anakin crash land their ships onto the Seperatist ship, the Invisible Hand at the beginning of the movie.
Episode IV: Luke as the Millenium Falcon approaches the Death Star.
Episode V: Leia as the Millenium Falcon enters the large asteroid.
Episode VI: C-3PO as him and R2 enter Jabba's palace.
Actually the linegae of Master and Apprentice is as follows.
Yoda was Dooku's Master.
Dooku was Qui-Gon's Master.
Qui-Gon was Obi-Wan's Master.
Dooku says to Obi-Wan: "You forget that he was once my apprentice as you were once his."
Later Dooku says to Yoda: "I have become more powerful than any Jedi.
Even you, my old Master."
After Dooku and Yoda fight, Yoda says to Dooku: "You have fought well, my old padawan."