Matt Dillon Brings Girlfriend Roberta Mastromichele To 'The Great Fellove' Premiere at San Sebastian Film Festival

Matt Dillon holds hand with Roberta Mastromichele while attending The Great Fellove premiere during the 2020 San Sebastian International Film Festival held at the Victoria Eugenia Theater on Tuesday evening (September 22) in Spain. The 56-year-old actor was the director on the film and spoke to Deadline about the project ahead of the red carpet