Here is the synopsis, from IMDB:
While trying to avoid the clichés of Hollywood romantic comedies, Dylan (Timberlake) and Jamie (Kunis) soon discover however that adding the act of sex to their friendship does lead to complications.
If you were wondering at all why I do not intend to see this movie, your answer is in that synopsis. It's telling me everything I need to know about this movie. And then this trailer fills in the rest. Before I continue, does any of this premise seem familiar at all?
Allow me to present some evidence: