Hasbro has been teasing new animation after the upcoming special event screening of Transformers: The Movie. Today, they’ve announced Optimus Prime: Awakening.

The brand-new 12-minute animated short will debut exclusively in theaters after Transformers: The Movie, returning for its 40th anniversary beginning September 17. Featuring Frank Welker as Megatron and Soundwave and the late Peter Cullen in his final original voice performance as Optimus Prime, this animated short brings a new chapter of Transformers storytelling to the big screen.

Cullen passed away August 26 at the age of 85 turning this special screening into a way to remember and honor the beloved actor.