Originally posted by Arrow
if i buy gtav on my u.s region psn account would my friend in canada be able to gameshare and play the game as well?
You'll be able to play 100%
Games are NOT region-locked on PS3/PS4 consoles, you can play a chinese game in the USA or whatever game you want lol.
The only thing(s) that are region locked are DLC content. (For example if someone you know bought a game and its DLC in Europe, only the game would work for you, not the DLCs).
But in your case, your friend
will be able to play your games AND DLCs as well in Canada, because the two contries are in the same region, North America.