This film is being shown as part of the 'The Craft of Film' season at Barbican Cinema, and features a Q&A with the movie's editor Yorgos Mavropsaridis.
Chicago Reader review:
I've seen movies this weird before, but never from Greece. Inside the confines of a nicely appointed country home, a stern patriarch and his obedient wife keep their teenage son and two teenage daughters cloistered from the world and zanily miseducated. Tape-recorded vocabulary lessons teach them new words with absurdly inaccurate definitions, an LP of Frank Sinatra singing "Fly Me to the Moon" is presented to them as their grandfather's voice, and a female security guard from the father's workplace is periodically brought home to copulate with the blank-faced young man. Writer-director Yorgos Lanthimos walks a fine line between the sinister and the hilarious, though the confused siblings (Aggeliki Papoulia, Mary Tsoni, and Hristos Passalis) are never less than poignant. This 2009 comedy is one you won't forget, though probably not for lack of trying.
Here (and above) is the trailer.