Do email us with your favourite dream-related films!
The most intriguing? We suggest Last Year in Marienbad (L'Année dernière à Marienbad, 1961), has she forgotten him, is he lying, is one of them dreaming it? And a weird formal garden and background organ music.
https://en.wikipedia.org/wiki/Last_Year_at_Marienbad

​The most fun? We suggest The 5,000 Fingers of Dr T, a 1953 musical fantasy written by Theodor Seuss Geisel (Dr. Seuss).  
https://en.wikipedia.org/wiki/The_5,000_Fingers_of_Dr._T

For beauty and also poignancy Akira Kurosawa's (2000) film Dreams has eight vignettes, inspired by his dreams. Vignettes include the foxes' wedding procession, the chopped down peach orchard, the blizzard, the tunnel with march of dead soldiers, the village of the watermills. Incredibly memorable scenes. 
https://en.wikipedia.org/wiki/Dreams_(1990_film)

From 26th October 2016 to 6th March 2017 Tate Britain showed a major exhibition of the surrealist and war painter, Paul Nash.   
http://www.tate.org.uk/whats-on/tate-britain/exhibition/paul-nash
​The exhibition showed his paintings of trees and gardens at dusk, very atmospheric, then his more surreal and symbolic work, and then the famous war paintings. The latter includes the well-known Totes Meer (Dead Sea) 1940-41, showing the pieces of shot down German plans at a dump near Oxford, looking like the waves of the sea.  
http://www.tate.org.uk/art/artists/paul-nash-1690