Anthology films (also known as compendium or portmanteau films) tend to be viewed with diffidence by critics, but being a life-long fan of the format (from Monty Python's The Meaning of Life to the excellent Monicelli/Fellini/Visconti/De Sica vehicle Boccaccio '70), I had very high expectations when I first heard of this Spanish-Argentinian gem being shown at Cannes last year.