Very good. I enjoyed it way more than I expected. You should go. Dulwich Picture Gallery continues to have surprisingly good, though small, exhibitions. Russell, worth a look if you happen to be in Dulwich.
I'm sure Modernist is the correct technical art term, but it didn't feel how I think of modernist. If that makes sense. It felt much more industrial. There was more movement than I was expecting. The prints felt like stills from a film.
The London stuff was great and I'd not seen any of it before despite always thinking I've seen all of those London Underground posters.
Closes 8 September. More info here.