Gavin Leatherwood joins the cast of the romantic comedy film “It Happened One Summer,” which is currently filming in New York. Leatherwood joins previously announced cast members Nina Dobrev, Tyler Hoechlin and Virginia Gardner, forming an ensemble for the movie directed by Peter Hutchings. The film is adapted from Tessa Bailey’s 2021 bestselling novel “It Happened One Summer,” the first installment in Bailey’s Bellinger Sisters series. Multiple outlets report that production is underway in New York as casting is finalized. The project is described as a BookTok-driven and widely popular romance, with the adaptation bringing the story from the novel to a feature film format. Deadline, The Hollywood Reporter, and Variety all identify Leatherwood’s addition to the cast and confirm the current production status and location, while also tying the adaptation to Bailey’s source material and Hutchings’ direction.