Easterhay said:

We watched it as a family yesterday and it's always a scene that astounds me.

Anakin Starkiller was originally the father of the twins in one of many original drafts. It's funny how some fans pull up on Lucas's constant revisions to his story before settling on one version - do these people honestly think that when they pick up a book in a bookshop that the copy they are holding is the first draft of that story?

It was actually Kane Starkiller that was the father of twins. Annikin Starkiller was actually the son, who was later renamed Luke. The thread of a father with multiple sons and then the father dying was a part of the story from early on, but this is completely different from what Lucas implies was "always" there.

In the first treatment, the story is about a master-student relationship between an older Jedi and his young student. The treatment doesn't seem to have been completed. The second treatment is a remake of Hidden Fortress, about a General's mission to escort a princess through hostile galactic territory, with a duo of idiotic bureaucrats. This was expanded into the rough draft, where the General was broken up into two people, one being General Skywalker as per the treatment, and the other being Kane Starkiller, who has a son named Annikin that he is training. The duo of bureacrats was converted into a duo of robots. Lucas also added two villains, a General Darth Vader and a Sith Lord Valorum, plus an Emperor Cos Dashit.

So, as you can, yes, the earliest scripts were even way more different than Lucas tells. But Lucas also says that the basic story of the whole trilogy was included in these scripts, which isn't true at all. ESB he made up by the seat of his pants in 1977 and 1978. He had to have Leigh Brackett confer with him on the plot, because he didn't reall have anything. So I would say you shouldn't be too hard on people that doubt Lucas' accuracy here. They are right.