A nine-part interview (Entretien) with him (by Andre Parinaud) from 1950 may be listened to (en francais) here
Illuminating footage of Breton and others can be seen in the documentary, Passage Breton by Michel Polac and Robert Benayoun, made in 1970, four years after his death. and featuring interviews with some notable Surrealist contemporaries – Salvador Dali, Matta, Jacques Baron, Joyce Mansour, Andre Pieyre de Mandiargues, Man Ray.
Peruse once again (if you dare) the Surrealist manifesto
Swoon once again over Nadja
Ponder the adjective – “surreal”