"See You Yesterday" is a 2019 science-fiction film directed by Stefon Bristol. The story follows two teenage prodigies, C.J. and Sebastian, who invent time-travel backpacks in an attempt to save C.J.'s brother from being wrongfully killed by the police. However, as they try to change the past, they realize that their actions have unexpected and potentially dangerous consequences. Best friends CJ and Sebastian build a pair of time machines and use them in order to save the life of CJs brother.

Source: SolarMovie