Or you can get yourself a multiregion DVD player if you are in the US.
Here are some other options thanks to Kat :))
There is the option of buying a DVD player that you can change the code on....the one I bought was about $70 or $80 at Best Buy and the guys at the store told which one to buy. There is the option to buy one off of Amazon for about $50 + shipping and I think there are ones that you have to change the code on and others you don't.
There is also the option to download a free software on your computer called VLC. You would d/l it and set it as your default media player. http://www.videolan.org/ It *should* work and it should allow you to watch movies as often as you want. I would recommend people d/l it first and try a dvd they already have to make sure it plays (some computers may have codec or driver issues...you never know) If putting the DVD in and it doesnt start up right away...try opening VLC first and then the opening DVD....
I have never had an issue with it (watched BMH on it)
OK found this for hacking your mac to let the DVD player be region free:
here is a link to a software that lets you get rid of the region code on your DVD. Then you make a copy for your DVD player
There is a free 21 day trial period.