I haven't actually watched Tron yet.
Haven't really had time, and don't want to watch it if it's not in the IMAX. I think I'm going to see it next week.
I guess it's always a possibility that it could be rebooted, but I'd struggle to see how they'd drastically improve on the first film (compared to Potter, which could easily be improved in 20 years with better child actors and being able to take more liberties with the story).
Discworld books are pretty much make up the majority of fiction I read now and I've read a fair few. I don't really like the first two that much, so I probably wouldn't recommend starting at the beginning. My favourite characters are a journalist (The Truth, which would be a pretty good starting point) and a reformed conman turned postman/minter (Going Postal, Making Money).
This is a pretty good reading order guide, pick a topic you like a look of and dive in. The Industrial Revolution is my favourite, so you'd start at Moving Pictures (which is about films, so would be a good starting point for a fanatic
) and then move onto The Truth, Monstrous Regiment (which is probably my favourite book, it's a fantastic story) before Going Postal and Making Money. Pretty good introduction to some of the very best he has to offer.
http://www.lspace.org/books/reading-order-guides/the-discworld-reading-order-guide-20.jpg