In 2017, Chalamet gained wider recognition for his portrayal of Elio Perlman in Luca Guadagnino's romantic drama Call Me by Your Name, after which he appeared in the coming-of-age films Hot Summer Nights and Lady Bird as well as the western Hostiles. His performance in Call Me by Your Name earned him an Academy Award nomination for Best Actor, making him the third-youngest nominee in the category. He then portrayed a drug-addicted teenager in the drama Beautiful Boy (2018), for which he was nominated for the BAFTA Award for Best Actor in a Supporting Role.