How can you transfer movies from your ipod to a new computer with a new itunes?

intentionally you cant but if you sign in on the new computer with your old account and click the file share "on" button you will be able to access all of your files on your olther computer.

Or you can use an iPod to computer transfer program to help.I personally use this ipad/iphone/iPod to Computer Transfer.It helps me to transfer my songs/videos/photos/playlists etc from ipod to my computer directly and safely.It works well for me.