Superman Unbound is the 2013 DC Universe animated feature film adapting DC Comics story arc Superman: Brainiac by Geoff Johns.
In this movie, Earth is saved from an incoming asteroid by Superman (Matt Bomer), who quickly discovers the object is actually alien technology sent by Brainiac (John Noble). Supergirl (Molly Quinn) has history with the villain who once kidnapped the entire Kryptonian city of Kandor.
The movie also stars Stana Katic as Lois Lane, Diedrich Bader as Steve Lombard, Frances Conroy as Martha Kent and Stephen Root as Zor-El.
James Tucker directed from a script he co-wrote with Alan Burnett.