10 Greatest Unspoken Star Wars Movie Plot Points

10. The Reason For R2-D2's Disobedience - The Empire Strikes Back

You'll probably remember that, in the Empire Strikes Back, R2-D2 demonstrates a habit of disobeying Luke Skywalker's (Mark Hamill) orders to stay put and remain with the ship.

While at first glance this seems like nothing more than R2-D2 being an amusingly independent-minded droid who wants to help his charge complete his mission, the much sadder truth is actually subtly explained in the prequels.

In Revenge of the Sith, when Anakin (Hayden Christensen) touches down on Mustafar with R2 in tow, he tells him to stay with the ship. Except in this case, R2 obeys Anakin's request, only for Anakin to subsequently become Darth Vader and never return to R2.

This in turn seemingly caused R2 to develop some understandable abandonment issues, and so in the events of the Original Trilogy, he's not about to sit still and wait around for a human who may or may not abandon him.

While we can technically put this down to George Lucas developing the plot point in retrospect in the prequels, it's still totally effective in explaining R2's distaste for compliance.