15-year-old Oliver Tate has two objectives: To lose his virginity before his next birthday, and to extinguish the flame between his mother and an ex-lover who has resurfaced in her life. 'Submarine' is a melancholic comedy, and would slip easily into a boxset with 'Rushmore', 'Scott Pilgrim' and 'Harold and Maude'. Richard Ayoade's debut is extremely well-crafted, less cynical and more mature than you might expect from an alumnus of dark British comedy.