Yes it is, Colour Sergeant Bourne.
One of the best movies of all time. Interestingly enough, I've read that many of the Zulu at Isandlwana and Rourke's Drift were armed with old Sniders. The British of course were armed with Martini-Henry rifles which had replaced the Snider in front line service. Yes, I'm a history geek. That's why I love these old rifles.