......

All-Star Superman (DC Entertainment)
Babylon 5: The Road Home
Batman: Bad Blood (DC Entertainment)
Batman Beyond: Return of the Joker
Batman: The Killing Joke (DC Entertainment)
Batman: Mask of the Phantasm
Batman & Mr. Freeze: SubZero
Batman: Mystery of the Batwoman (DC Entertainment)
Batman Unlimited: Monster Mayhem (DC Entertainment)
The Batman vs. Dracula (DC Entertainment / Dong Woo Animation / DR Movie)
Batman vs. Robin (DC Entertainment)
DC Super Hero Girls: Hero of the Year (DC Entertainment)
DC Super Hero Girls: Intergalactic Games (DC Entertainment)
DC Super Hero Girls: Legends of Atlantis (DC Entertainment)
Green Lantern: Emerald Knights (DC Entertainment)
Green Lantern: First Flight (DC Entertainment)
The Iron Giant
JLA Adventures: Trapped in Time (DC Entertainment)
Justice League: Crisis on Two Earths (DC Entertainment)
Justice League: Doom (DC Entertainment)
Justice League: The Flashpoint Paradox (DC Entertainment)
Justice League: Gods and Monsters (DC Entertainment)
Justice League: The New Frontier (DC Entertainment)
Justice League: Throne of Atlantis (DC Entertainment)
Justice League: War (DC Entertainment)
Scooby-Doo on Zombie Island (Hanna-Barbera)
Scooby-Doo! and the Witch's Ghost (Hanna-Barbera)
Scooby-Doo and the Alien Invaders (Hanna-Barbera)
Scooby-Doo and the Cyber Chase (Hanna-Barbera)
Scooby-Doo! and the Legend of the Vampire
Scooby-Doo! and the Monster of Mexico
Scooby-Doo! and the Loch Ness Monster
Son of Batman (DC Entertainment)
Space Jam
Superman/Batman: Apocalypse (DC Entertainment)
Superman/Batman: Public Enemies (DC Entertainment)
Tales of the Black Freighter (Paramount / Legendary / DC Comics)
Trick or Treat Scooby-Doo!
Wakko's Wish (Amblin Entertainment)
Watchmen Chapters I & II (DC Entertainment)
Wonder Woman (DC Entertainment)

Warner Animation Group
(IMDb; Wikipedia)

DC League of Super-Pets (DC Entertainment / Seven Bucks Productions)
The Lego Movie (Village Roadshow / Vertigo Entertainment / RatPac-Dune Entertainment)
The Lego Batman Movie (DC Entertainment / RatPac Entertainment / Vertigo Entertainment)
The Lego Ninjago Movie (RatPac Entertainment / Lin Pictures / Vertigo Entertainment / Animal Logic)
The Lego Movie 2: The Second Part (Vertigo Entertainment)
Storks (RatPac Entertainment)