Jenny Han went to great lengths to keep The Summer I Turned Pretty fans from finding out which brother Belly would choose - including filming fake scenes with Gavin Casalegno in Paris. "They just told me to get on a plane and show up," Casalegno, 26, told The Hollywood Reporter on Thursday, September 18, about visiting the City of Love for season 3. "They handed me sides that were blank and then I just went out there and ran." Casalegno, who plays Jeremiah, didn't mind not seeing those moments in the final season. "It was super fun. It was a free trip to Paris, I can't complain," he noted.