MOVIE PREMIERE: Laura Dern has had, and continues to have, a long and storied career as a movie actress. But on TV, of late, she’s found and delivered many of her most challenging and impressive roles: as Renata on HBO’s Big Little Lies, Diane on Showtime’s Twin Peaks reboot, Amy in HBO’s Enlightened, Katherine Harris in HBO’s Recount, and… need I go on? Okay, I will, long ago, to her playing the title role in HBO’s Citizen Ruth and, famously, the