The new extended trailer for Marvel's "Avengers: Age of Ultron" has debuted, featuring a bit of new footage and insight into Ultron's motives for clashing with Earth's Mightiest Heroes. The trailer has quite a bit in common with the first one released in October, but there's certainly more than enough -- especially in the opening -- to get fans speculating on what exactly Ultron's plans are when the film gets going.

Directed by Joss Whedon, "Avengers: Age of Ultron" hits theaters May 1, 2015.