The leading exponent of French impressionist cinema was considered Abel Gance who directed ‘Napoléon’, 1927. Shots are merged together in a unique way, which ensures verisimilitude. The camera constantly moves, which is something rarely done before.
Luis Buñuel and Salvador Dalí were the leading directors in surrealist cinema. Surrealist cinema was considered innovative but absurd, it involved the use of shocking imagery to challenge the common conventions at the time.
‘Un Chien Andalou’ or ‘An Andalusian Dog’ as it is known as in English, was the 1929 hit directed by Bunuel which really showcased surrealism. Dali collaborated with Hitchcock t create a surrealist dream sequence in the 1945 film ‘Spellbound’