10 Most Disturbing Star Wars Moments

An innocent peck on the cheek as the two prepare to risk life and limb to zip-wire from one Death Star platform to another is one thing. Very much locking lips in a steamy attempt to conjure up some jealousy is something else entirely, and an act that left most of the galaxy gagging in their cinema seats the minute a certain revelation came to light.

Despite what George Lucas would have you believe, Leia Organa wasn't always planned to be revealed as Luke Skywalker's twin sister, with Leigh Brackett's first draft of The Empire Strikes Back hinting at plans to have Luke search for his sibling in Lucas' proposed Sequel Trilogy.

Those plans would ultimately be scrapped in favour of the jaw-dropping Leia reveal in Return of the Jedi, of course, but it was evident from Lucas' willingness to have the two lock lips that he still wasn't entirely set on this twist coming to fruition at the time of Empire.

Either that or he simply has no issue with a little light incest being infused into his family features. Whatever way you slice it, history still shows that these two leading lights got way too close for anyone's comfort.