“Vicky Christina Barcelona” is the most thoroughly enjoyable hour and a half you could spend at the movies this season. At what point does Woody Allen’s “comeback” (as each of his last few movies have been hailed by critics) get to stick? Liberated from the upscale Manhattan locations that his characters could no longer afford, as well as from the crutch of casting himself or a famous impersonator as the romantic lead, Allen’s films have been consistently thoughtful, sober and darker than his proverbial “early, funny ones.”

Bankrolled by the Spanish tourism industry, the film is set in a clearly booming Barcelona (note the construction cranes that dot the skyline), which gets top billing along with the two American tourists (played by Scarlett Johansson and Rebecca Hall) whose summer in the city fuels the plot-line. Vicky and Christina are propositioned by painter Juan Antonio for a weekend of art, wine and sex. Javier Bardem is charming as the oddly well-rounded and soulful lothario (particularly for a Woody Allen film). Hall’s Vicky opens her mouth and Woody incredulously rejects Bardem’s proposition (though she thankfully spares us an impersonation). Johansson’s Christina, however, is intrigued and accepts. Johansson is a very spotty actress, but she usually acquits herself in roles such as this, that are basically variations on the 20-something ingenue set adrift that she played in “Lost In Translation.” Like all mid-summer night’s sex comedies, everyone eventually sleeps together. This includes a refreshingly non-judgmental open relationship between Bardem, Johansson and Bardem’s tempestuous unstable ex-wife, Penelope Cruz (who’s a wicked delight every moment she’s on the screen).

Ultimately, every winds up alone with a little less faith in perfect love. This is a consistent theme in Allen’s movies. Remember, his best-loved romantic comedy is wistfully narrated after his break-up with Annie Hall. Love rarely lasts in Allen’s movies. And lust, particularly lust for a passionate but unstable lover, usually ends badly – either in murder (“Match Point,” “Crimes and Misdemeanors”) or institutionalization (“Stardust Memories”). Here, Penelope Cruz stabs and shoots at Javier Bardem. This is a comedy, mind you, and a very funny one.