Ever since the Justice League Unlimited cartoon came to a conclusion, DC has been releasing tons of awesome films based directly on the comics. And taking a look at their upcoming projects, I am super excited for all of them. Especially that they would do a lesser known story like Justice League: Doomhttp://en.wikipedia.org/wiki/DC_Universe_Animated_Original_Movies
And if you guys haven't already checked out the Apocalypse, Green Lantern, All-Star Superman and Under the Red Hood films, I whole heartedly suggested you do.
Also, there is an awesome Superman/Shazam! short film, where the two powerhouses have to work together against the awesome might of Black Adam.