There are a bunch of ways you can stand your iPhone up for viewing the screen easier while watching a movie. Geeky Gadgets - the experts at making crazy iPhone stands out of regular household stuff have now created a new iPhone stand out of old CD's.
The CD iPhone Dock was made using a bunch of CD's - 12 or so of them (I recommend using some old AOL ones as you probably have a ton of them in a drawer somewhere), a Dremel and a bit of glue. The dock will work for almost any iPod and 2G as well as 3G iPhones along with the new iPhone 3G S.
For full instructions on how to hack up your old CD's with a Dremel to make a cool stand check out the full details over at Geeky Gadgets.