Which is exactly what I did the first time I tried to watch it, since I confused "interactive" with "shift things about and see what happens". I still rather like it though, after I managed to just watch it and see what it did.
Now I have the Reboot opera in my head, requiring yet another trip to youtube. I had great hopes for Tron when it came out, but it took Reboot to have the magic.
And I know it was ages ago. And I am sure I will see the new one, eventually.