What are some examples of surrealist feature-films?
Surrealist films have a long history in filmic expression. The leading director that I would nominate is Luis Bunuel who made some very surreal films. Bunuel started off with deep friendship early in the Surrealist world. One sees this paragraph in Wikipedia
In 1917, he attended the University of Madrid, first studying agronomy then industrial engineering and finally switching to philosophy. He developed a very close relationship with painter Salvador Dalí and poet Federico García Lorca, among other important Spanish creative artists living in the Residencia de Estudiantes, with the three friends forming the nucleus of the Spanish Surrealist avant-garde, and becoming known as members of "La Generación del 27".
Six of Buñuel's films are included in Sight & Sound's 2012 critics' poll of the top 250 films of all time. Fifteen of his films are included in the They Shoot Pictures, Don't They? list of the 1,000 greatest films of all time, for which he ranks second only to Jean-Luc Godard, with sixteen, and he ranks number 13 on their list of the top 250 directors.