AFI top 10 sci-fi

The American Film Institute has been pretty active lately, and they're churning out more lists. One of the latest is the top 10 sci-fi, of which our beloved original Star Wars "Episode IV A New Hope" comes in at #2 after 2001: A Space Odyssey. I just have to ask - Why, oh why did they have to choose that screen shot from Alien? *awful childhood memories*