If I wanted to do a non-paid intern (about 1 day a week) while I am teaching in korea with a film director that I know who is also in korea (wife of my professor here), would that be possible? or illegal (for visa, etc.)? Is there a way to work it out?

Also, I know you answered this question earlier but I would just like to clarify since it is an essential part of the app. process: how exactly do I have to present my diploma? and does it have to be the ACTUAL diploma that the school gives me (assuming they only give me one) and would I get it back if i had to turn it in when i apply or meet with the school?