Firstly, about the disclaimer: I don't think the assertion you make about not being liable is correct. It's somewhat like saying "If I let everyone know that what I'm about to do *is* copyright violation, nobody can call me on it afterwards." Also, "If you're going through with watching this, it means you agreed not to sue me." is not a statement you have the power to make. You're going to have to depend on Hasbro/Takara's goodwill.
In fact, I'm not impressed: the disclaimer seems almost as if you want to *steal away* the Transformers with legal trickery, even if your intention is just to protect yourself. (An I AGREE button? Huh.)
On another note, this movie rocks. :)