Focus Features has released the new full-lengthTullytrailer for the upcoming comedy, which marks a pretty eyebrow-raising collaboration. The film reunitesYoung AdultwriterDiablo Cody, directorJason Reitman, and starCharlize Theronfor the first time since that movie, and marks the third collaboration between Reitman and Cody afterJuno, which scored Cody an Oscar for Best Original Screenplay.

This new film stars Theron as a mother of three, including a newborn, who is gifted a night nanny by her brother, played byMark Duplass. She forms a unique bond with the new night nanny, played byHalt and Catch FirestarMackenzie Davis, but soon learns there’s more than meets the eye.

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The film had a surprise screening at the Sundance Film Festival in January where it received positive reviews, with some even comparing it to something likeMary Poppinsin that Davis' titular character changes the lives of this family for the better. This new trailer does a great job of showcasing the film’s brutally honest approach to motherhood, and the cinematography byEric Steelbergis really striking.

As one of five people who really liked Reitman’s last two filmsLabor DayandMen, Women, and Children, I’m game to see anything theUp in the Airfilmmaker tackles, butTullylooks like something special.

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Check out the newTullytrailer below. The film opens in theaters on April 20th.

Here’s the official synopsis forTully:

A new comedy from Academy Award®-nominated director Jason Reitman (“Up in the Air”) and Academy Award®-winning screenwriter Diablo Cody (“Juno”). Marlo (Academy Award® winner Charlize Theron), a mother of three including a newborn, is gifted a night nanny by her brother (Mark Duplass). Hesitant to the extravagance at first, Marlo comes to form a unique bond with the thoughtful, surprising, and sometimes challenging young nanny named Tully (Mackenzie Davis).

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