Haven't heard of the movie or the director, but the cover does look good.
Okay, and more importantly..
From the Criterion February Titles Press Release (via criterionforum.org):
Banned in Spain and denounced by the Vatican, surrealist genius Luis Bu˝uel's hilarious vision of life as a beggar's banquet is regarded by many as his masterpiece. Young novice Viridiana does her utmost to maintain her Catholic principles, but her lecherous uncle and a motley assemblage of paupers force her to confront the limits of her idealism. Winner of the Palme d'or at the 1961 Cannes Film Festival, this anticlerical free-for-all is as shocking today as ever.