Three of the biggest movie comedy stars have movies opening this week. Jason Segal (“The Muppets”) stars in an indie from the “mumblecore” Duplass brothers (“The Puffy Chair”), about what happens when “Jeff, Who Lives at Home” goes, as movie heroes have always gone, on a quest. In this case, it is just a quest to buy some glue for his mom (Susan Sarandon) and he is accompanied by this brother (Ed Helms). Will Ferrell stars in the all-Spanish “Casa de Mi Padre,” an offbeat parody of telenovelas, which, let’s face it, are already pretty much parodies of themselves. And the big release of the week is “21 Jump Street” with Channing Tatum and Jonah Hill, a comedy update of the television series about undercover cops that made Johnny Depp a star.