Quentin Lee is directing from a script by Fabienne Wen and Ellie Wen.
Posey will play a generous high school senior who becomes an unexpected friend to a freshman who has mild Asperger’s Syndrome.
B.D. Wong, Joan Chen, Harry Shum Jr. and Brit thesp Gregg Sulkin are set to co-star.
Christopher Lee and Joel Soisson are producing with Ellie Wen, while David Henry Hwang and Kevin Iwashina of Preferred Content will exec produce.
Posey will soon return to the small screen, as MTV recently picked up “Teen Wolf” for a second season.
Thesp is repped by Gersh, 3 Arts Entertainment and attorney Leslie Abell of Myman Greenspan Fineman Fox Light.