I came across this today thanks to a link on the WW2Talk forum. The British Pathe site is a real treasure trove.
Our Libya Offensive
This is a 5-minute piece about CRUSADER’s early stages. A lot of varied shots, including a very rare bird, the de Havilland D.H.86 Express in the air ambulance role. I would place the film into early December, after some setbacks, but before the relief of Tobruk. It also shows very good footage of the 4.5″ mediums of 7 Medium regiment being fired.
Action in the Desert
There is another bit of unused footage, showing in particular Honey tanks buzzing around the desert, and tentatively dated also to December 41. There appears to be no sound. It looks to me as if this was leftover of the previous reel.
While not directly relevant to CRUSADER, this is some interesting footage from inside Tobruk: