Star Wars Episode III concludes the story of a once beloved icon falling to the dark side, and is also about Anakin Skywalker becoming Darth Vader. The opening scene features a huge space battle between the Republic and the Separatists, who are so evil that they've kidnapped Republican Chancellor Palpatine and forced viewers to listen to like 16 hours of dialogue about trade negotiations.
Anakin and Obi-Wan get inside the ship holding Palpatine, where they're immediately greeted by a bunch of battle droids. The two Jedi easily dispatch the droids, because sending a bunch of wacky metal crickets to fight magical space-knights was never going to work out.
"I died as I lived -- pointless plot filler!"
But Wait a Minute
Anakin and Obi-Wan have telekinetic powers, superhuman agility, and, of course, lightsabers. But the otherwise incompetent droids have one key advantage over the Jedi: They don't need oxygen. On the ground, that weakness is irrelevant -- but this fight takes place in a hangar that already appears to be open to space on one side. Why is there even oxygen in that part of the ship to begin with? It's a hangar run entirely by droids. Do they like the taste?
Lucasfilm/20th Century Fox