A Steamy French Thriller Is a ‘Sleeper Smash Hit’

The 1969 film “La Piscine” was supposed to run for two weeks at New York’s Film Forum, but it’s been extended to the fall.

For the past 14 weeks at Film Forum, a longstanding independent and repertory theater on West Houston Street in Manhattan, the 1969 French film “La Piscine” has been playing — a run that has extended its initial engagement by 12 weeks, and counting. “Rear Window,” “8 ½,” “La Strada” and a popular Humphrey Bogart series that included “Casablanca” have all come and gone, but “La Piscine” swims on. If there is a film of New York’s 2021 summer, this may be it.