This is the second of Forman's Czech films I've watched after the other Criterion release, THE FIREMAN'S BALL (1967) - though that was via a late-night Italian TV broadcast some years ago; these two films constitute his most celebrated work from this early phase in his career.
While a pleasant and sharply-observed comedy-drama in itself, which must have seemed fresh at the time (particularly the intimate detail of its teenage romance), I feel that a lot of these unassuming but critically-acclaimed foreign films - often made under strained political conditions - tend to come off as overrated when viewed today (a similar recent example I encountered was CLOSELY WATCHED TRAINS [1966]). That said, the film benefits immensely from the wonderful cinematography by Miroslav Ondricek (Forman's longtime collaborator).
Besides, it also includes a couple of lengthy - and delightful - set-pieces: the party sequence, in which the heroine and her two best friends are picked up by a trio of geeky middle-aged soldiers; the scene at the home of the girl's 'boyfriend' (with whom she had a one-night stand), where she causes a commotion by turning up unannounced on his doorstep with a packed suitcase!
The DVD supplements comprise an amusing but irrelevant deleted scene, and an interesting 17-minute interview with Forman - in which he discusses the film's genesis and how the mix of professional and untrained actors proved providential, sealing its essential charm.