This is a Superman fan film I created earlier this year! I’d love for some fellow members of the DC community to give it a watch and share your thoughts 
Here’s the synopsis: Superman hears word of a Multiverse-threatening scheme being hatched by Brainiac. He must confront this robotic villain with unfathomable power, and find a way to restore the Multiverse to a state of peace before Brainiac’s Convergence is complete. Can he trust Lex Luthor as an ally? And who else may get in his way?