"I was at the premiere, and I was dying laughing," Culkin told the Los Angeles Times in December. "It was the funniest thing I had ever seen. I had no idea what the movie was abou

The film, dubbed an heir of Woody Allen, follows Jewish American cousins who travel to Poland in memory of their late grandmother

Culkin, who won a Golden Globe for 'A Real Pain' almost pulled out of the project until producer Emma Stone flew him to the set

Kieran Culkin played Fuller McCallister, while his brother Macaulay Culkin starred as cousin Kevin, in ‘Home Alone’

The character of our grandmother is based on my Aunt Doris. She was bored and raised in Poland, was such an unusual person and gave me such grounding in my life. She died at 101 and while the film is fictional, it has many personal, autobiographical elements that came out, like my aunt and even filming at the home my family lived in in Poland.

In A Real Pain, Kieran Culkin and Jesse Eisenberg play mismatched cousins, Benji Kaplan and David Kaplan. They travel to Europe to honor their grandmother and track their Jewish lineage. Dysfunction arises when the two drastically different personalities face unresolved tensions from the past.