Oscar-winner Kathy Bates and “Work It” star Liza Koshy have joined the cast of a still-untitled romantic comedy in the works at Netflix that will star the previously announced Nicole Kidman, Zac Efron and Joey King.Richard LaGravenese (“Behind the Candelabra”) is directing the film from a script he co-wrote with Carrie Solomon.The film follows a surprising romance that kicks off when a young woman, her mother and her movie star boss face the complications of love, sex, and identity. No character details were revealed for Bates and Koshy.