Sort of OT, but I thought this is the place to post this link:

http://www.timesonline.co.uk/article/0,,2099-2381797_1,00.html

It's a TimesOnline article about a 90 year old movie "The battle of the Somme" that will be available on DVD later this year.

Also on the first page a link to a short film with British artillery in action.

Cheers,

Willem.