What Fictional Depictions Of Rape Are OK?

Alyssa Rosenberg is repulsed by an upcoming zombie movie in which the dead reproduce by rape:

[I]t sounds like there’s strong potential for grossness-for-grossness’s sake here, a la the Human Centipede movies. You don’t actually need to have zombies rape women to get the message across the audience that zombies are gross and it would be better not to be one. I suppose along the same lines, The Walking Dead didn’t actually need to show a horse being ripped apart by a horde of zombies — one of the most disgusting things I’ve ever seen on television or in any medium — though that scene did provide a sense of vast, massing hunger. It may have been very difficult to watch, but it wasn’t artistically irredeemable.

She previously examined depictions of rape in the context of humor and more generally.