It may be me, but I think that the humor in the original Italian Job hasn't aged well, it appears rather juvenile on several occasions these days. That's not to say that it doesn't have its moments, and I understand that some will love it forever for what it is. But I thought I liked it better until I watched it again last year.
I agree though that Get Carter is absolutely brilliant.
I also very much like Zulu (although the acting - not the leading role actors' - must be considered theatralic today).
I would like to point out a gem that hasn't found much attention, and that's Flawless.
I'd rate Pulp higher than place 46. The film still works very well these days even though it clearly is an early 70s production.
Dirty Rotten Scoundrels is one of the best comedies of all time, just as the Ipcress File is timeless as well.