At first, producers were “anything but excited” to make Planet Hulk, but when the project came to fruition, it turned into a completely unique Hulk storyline than fans have ever seen before.

Screenwriter Greg Johnson, supervising producer Joshua Fine and executive producer Eric S. Rollman talk about making the most emotionally-charged Hulk yet in this exclusive behind-the-scenes clip from Planet Hulk.

Check out the making of Planet Hulk