Why did Tom turn it down? I've heard several rumours but would be nice to know his reasoning.
From the commentaries and features, the boiled-down version seems to be he hadn't been gone from the part long enough for it to be special, but he did allow use of the footage from Shada to be used.
I wasn't aware it required his permission, but since they referenced it at least 3 times, it must have been a big deal. I wonder if that means they needed Lala's permission as well?