Re: Curving of pictures
Hi Nickwad and welcome!
You can use the "Shear" filter (Filter>Distort>Shear) for curving a picture. There are some pretty good tutorials on the web, here's one of them:
http://www.creativepro.com/article/phot ... ar-mastery
Scroll down to near the bottom of that page and you'll see "Pete's Cup" which is a good example.
Hope this is helpful.