Oh, I was under the impression the trailer wasn't on the official DVD; the one site I visited to check didn't list any additional features. I still haven't got my copy of the DVD (on my list of movies to buy next time I'm at a decent DVD shop).

Anyway, I've now looked at a better site and can confirm that it is at least present on the Regions 1, 2 and 4 discs; so I won't be putting the trailer on the 'Extra Extended Encore Edition'.

Thanks anyway to those who were willing to help me out!