Louise, I'm a huge DVD whore myself. I have to buy at least one every week.
So, I saw the extra DVD of the collection. I has some interesting stuff in there, but no Keanu.
Alex is the only one of the duo that is interviewed and shares some of the experiences while doing the movie. I guess Keanu was busy filming Matrix or something.
Alex looks so different. He's...matured.
About the mountain, yeah, they mention that on the DVD. It's also the one where the four aliens have the granolith in my favorite show, Roswell.
The mountain is called Vasquez, I believe. I freaked when I saw it on the extras. I was like, "That's from Roswell! YAY!"