The stars play Jewish American cousins touring Poland in honour of their grandmother in Eisenberg’s sharp, highly personal comedy boasting an Oscar-tipped performance from Culkin

It’s a slip of a thing, clocking in at a tight 90 minutes; a deft, light-footed amalgamation of two potentially formulaic comedy genres: the road movie and the mismatched buddy flick. But the second directorial venture from actor Jesse Eisenberg, which he also wrote and stars in, is considerably more than the seemingly slight sum of its parts. A Real Pain is a whip-sharp comedy driven by the rattling verbal sparring between uptight, neurotic David (Eisenberg) and his outgoing, unpredictable cousin Benji (Kieran Culkin). It’s also a profound character study – a substantial and emotionally nourishing journey that contains, courtesy of Culkin, perhaps the most devastating final shot of any film you will see this year.

It’s a notable step up for Eisenberg as a writer-director.