I like a lot of 70s Brit films, the weak comedies, the dodgy dramas. It's more to do with the locations and the 'spot the actor' fun. Just once in a while, mind - they bring you down if you watch too many. There was a period in the mid 80s where Border TV showed them most afternoons, and because I had a 'study period' three days a week, I was home from sixth-form so could watch with my grillsteak and chips and a cuppa. Happy times.
Similarly Brit 70s horror. Amicus, that sorta thing. Lots of fun!
That stuff is cool though. You can't help being a hipster Dougie.