how to download movies to ipad2?

buy movies from the i tunes store and watch them under videos on the I Pad. Or you can buy them on the PC and sync them on your i pad.

Go to iTunes, purchase or rent a movie, and then iTunes will show that you have a download. Download it, and you can watch it whenever....

P.S. Downloading can take awhile, so best to do it when you're done with your iPad for the night, or to download on your computer snd sync....

Can I share videos that I've purchased?

Share where to and where from? From the iPad itself? Only to an AppleTV, via AirPlay. From a desktop iTunes? To any iOS device (incl. ATV) that uses the same iTunes store login, via Home Sharing.