Thanks for this feedback, all.
I've seen Pleasantville, and we may have discussed it before, TSA - a good movie, I agree. I think it is quite a political movie, Smurf (isn't everything, ultimately?) - it involves a kind of revolt against a stultifying social system that only permitted (permits? this is quite topical given the current conservative backlash in the US, I'd imagine) one to live on the surface of life. I saw it quite a while ago and don't remember all the details.
Hey, by the way Smurf, it's me... alexandra! Hi, matey, long time no speak to! I see you're still fighting the good fight on PF sometimes. I've ventured back a couple of times too, but I mostly don't hang out there any more... and when I log on there, I usually just go to the maths and astronomy sections. It's a matter of 'you can lead a horse to water, but you can't make it drink' - I've gotten quite bored with the same old arguments there all the time. But sometimes I hop in, now and again... depending on my mood.
Back to movies: I watched Starship Troopers with my daughter and some of her friends - I remember enjoying its humour quite a bit, but that may be because one of her friends really loved it and had a totally infectious laugh

I'll look out for the other movies you guys have recommended - I haven't seen the rest of them. The plot summaries look very promising TSM, the theme music on that first site you provided is great; I'd get Good Night, And Good Luck out just for the music - after such a sustained period of listening to angry, sad music I think it'll be good for me!
sophia