Are you up for more “Mamma Mia”? Because, Judy Craymer, the producer of the “Mamma Mia!” original stage production and the two subsequent films, has an idea for a third movie and is committed to making it. She also has a way to bring Cher back to the film as Streep’s mother and grandmother to Sophie (Amanda Seyfried). Although there’s nothing official yet, Craymer said things are still early and need the blessing of ABBA. What do you think? Is it the right time for more “Mamma Mia!”?