Red, White, and Zero (1979)

Composed of three shorts – Ride of the Valkyrie, The White Bus, and Red and Blue – from three of Britain’s most-celebrated directors - Lindsay Anderson, Peter Brook, and Tony Richardson. Comic legend Zero Mostel stars as an opera singer (in full costume) navigating the London transport network as he attempts to reach Covent Garden in 'Ride of the Valkyrie'. Scripted by Shelagh Delaney, 'The White Bus' blends realism, drama, and poetry as a despondent young woman travels home to the North of England. And Vanessa Redgrave stars in Tony Richardson’s romantic reverie and musical featurette 'Red and Blue'. Produced in 1967, but ultimately shelved.

Unfortunately the movie Red, White, and Zero is not yet available on HBO Max.