Dave Franco is set to star in ‘Regretting You’. The 39-year-old ‘Superbad’ actor has been cast as Jonah in the upcoming big-screen adaptation of ‘It Ends with Us’ author Colleen Hoover’s 2019 novel of the same name. He is the love interest of Morgan Grant (Allison Williams), who is left devastated when her husband Chris is involved in a tragic and questionable accident. Morgan became a mother at a young age to daughter Clara (Mckenna Grace) and doesn’t want the same for her daughter. The tome’s blurb reads: “Morgan Grant and her sixteen-year-old daughter, Clara, would like nothing more than to…