Kirsten Dunst and Jesse Plemons are enjoying date night ... whose brother (Plemons) brings home a new wife (Dunst) and her son (Kodi Smit-McPhee), to whom Cumberbatch's character finds himself ...

“Being at home with your children is ... the couple during her acceptance speech at the Oscars, saying, “Kirsten Dunst, you’re a doll. Jesse Plemons is the cat that’s still licking ...