Hulk smashes...and smashes...and smashes...
Parents need to know that this is a violent cartoon double-feature of long short subjects (or short features) featuring Marvel comics characters, not a live-action epic. It presumes the viewer has in-depth knowledge of the Marvel Universe; newcomers to Hulk and X-Men stories will be especially puzzled. The combat, especially in "Hulk Vs. Wolverine," is unusually vicious for a "mere" cartoon. Red blood pours (even from the green-skinned Hulk, strangely), and arms are torn or amputated off. Wolverine and a few other characters are depicted as heavy drinkers. Deeply religious families may be put off by the pantheon of pagan gods and magic of "Hulk Vs. Thor" (even though it's clearly set in another world).