I second Arrival. You haven't done a Denis Villenueve film yet and it's a good one. J & J's also good but probably a better showcase for Meryl Streep as Julia Child (and a redux episode for her, if she gets one) than Amy as Julie.
For her early career maybe her Night at the Museum film; for her more recent stuff, maybe Vice, the (notorious) Dear Evan Hansen, or Enchanted's sequel Disenchanted.