Warner Bros. is developing a Wonder Twins film for HBO Max.
According to THR, the project -- simply titled Wonder Twins -- is being written and directed by Black Adam screenwriter Adam Sztykiel, with Marty Bowen and Wyck Godfrey producing for Temple Hill.
Created by Norman Maurer, William Hanna and Joseph Barbera, the Wonder Twins are a pair of siblings named Zan and Jayna with the power to transform into any state of water (Zan) or animal (Jayna) after touching hands and shouting, "Wonder Twin powers, activate!" The twins debuted in 1977's The All-New Super Friends Hour and were frequently accompanied by their blue alien monkey pet Gleek, along with members of the Justice League.