ET has been on HBO a lot over the last few weeks and every time I find it while I'm channel surfing, I always click on the channel it's on, and watch the remainder of the movie. It still holds up, and Henry Thomas is such a stand out actor. I'm not sure if he's ever matched the intensity or the lead role as Elliot (although he got close in a few movies like Scorsese's Gangs of New York), but it's a shame he hasn't done more.
Anyway, here's the audition that secured his role in E.T. -- the kid has talent.