Their only requirement is that if you use copyrighted material, you make sure and don’t sell it or use it to make profit in any way. I’m being very careful of that, am aware of the possibility of legal ramifications, and am not too worried based on Lucasfilm’s past record regarding these things.
But you ask for donations on your site which could easily be construed as attempting to profit from your film. You clearly put in your post heading that you are “hesitant to post” and clarify that by admitting to worrying about using copyrighted content. If ever there was an “open and shut case” you just made it.
Not worrying about legal ramifications based on past behavior is a risky attitude. Of course, that’s your prerogative. It is, however, totally disingenuous to post copyright notices on YOUR work and ignore them on other’s work based on “past behavior” from a studio. If you can’t see that, or take umbrage to my pointing it out, then I am wasting both your time and mine.
I hate to see people who have a lot of talent get sidetracked by making avoidable mistakes. I hate it even more when they are financially ruined by companies who suddenly decide to make and “example” of them. Just for laughs, you might ring up your attorney and get a ball park figure on what it would cost you to defend yourself against a copyright infringement suit (again one that you would most definitely lose).
I think that you would be less cavalier in your attitude when you realizes that even though it may have never happened before, if YOU are the lucky one to be chosen to go on the block, your life will change dramatically. All the “Fun” goes out of a project that lands you in court.
Best of luck in future projects and remember, Talent and common sense don’t always go hand in hand and sometimes the person who doesn’t shower you with roses is giving you the best advice.