There are copies on Amazon
This movie has been released on VHS only. Here is a link:
http://www.amazon.com/gp/product/B0009XF4TK/002-7992817-4264034?ie=UTF 8&tag=edgevideo-20&linkCode=xm2&camp=1789&creativeASIN =B0009XF4TK
This is not true anymore, it is on Amazon but in DVD form, because I just got a copy on DVD from Amazon and watched it last night (see my other posting on here).
"I happen to be a vegetarian". Lex, from Jurrasic Park