Splice
In cult sci-fi hit Splice, a kind of spiritual gritty reboot of Species, Adrien Brody and Sarah Polley develop a female, humanoid creature based on genetically modified and spliced DNA. Polley feels maternal instincts toward the creature, named Dren. Brody has sex with the creature in a barn. Then, in an audacious final act, Dren transforms into a male and rapes Polley, impregnating her. Is this movie good enough to earn such a moment of transgression? For me: pretty much nope!