Shot on location last year in Warsaw and Eastern Poland, the film co-stars Succession’s Kieran Culkin and Dirty Dancing’s Jennifer Grey.

Inspired by a backpacking trip Eisenberg embarked on in 2007, the film tells the story of two cousins (played by Eisenberg and Culkin) as they travel around Poland in the footsteps of their grandmother.

Following them on their “Holocaust memorial tour” of the country, the film opened to positive reviews with Variety praising it as “a deft, funny, heady, beautifully staged ramble of a road movie about two Jewish cousins.”

Entertainment Weekly, meanwhile, call the film “both hilarious and devastatingly real, anchored by Culkin’s unforgettable performance.”

Recently the recipient of an Emmy for his standout role as Roman Roy in Succession, Culkin is also credited by The Guardian for his “scene-stealing, live-wire intensity.”

Continuing, The Guardian’s review added: “Filmed on location in Poland, including at the Majdanek concentration camp, A Real Pain has an alluring, unforced sense of place; Eisenberg and the cinematographer Michal Dymek capture Warsaw, Lublin and the Polish countryside with a curious eye, and not always glamorously.

“Returning to such a haunted, hallowed place also means plenty of graffiti, Communist brutalism, nondescript hotel rooms and trains.”

Last summer, Culkin and Eisenberg found themselves going viral in Polish social media feeds after being spotted filming in Muranów as well as taking a train from Warsaw’s central train station.

Described by Eisenberg as his “love letter to Poland”, the buzz surrounding A Real Pain has now gone global with the New York Post joining the plaudits to call it, “a big punchy film that’s intimate and nuanced at the same time – in short, a real pleasure”.

Already named one of the best films so far of the Sundance Film Festival, this “knife-sharp odyssey” has now been sold to Searclight for USD 10 million after a bidding war sparked by its premier.