The theme of tonight's posters: "complicated romantic relationships."  On the lighter side of the spectrum, we have Natalie Portman and Ashton Kutcher smiling postcoitus for the romantic comedy No Strings Attached.  On the heavier side -- the "This is so unnerving no one under 17 can see this" side -- we have the washed out heads of Ryan Gosling and Michelle Wiliams weighed down by the angst of Blue Valentine.  Hit the jump to see both posters in full.

Portman has five movies due in the next six months: Black Swan, Hesher, No Strings Attached, Your Highness, and ThorNo Strings Attached looks to be the weak link, though perhaps only because the similarly-themed Friends with Benefits looks surprisingly sturdy.  (And Kutcher-free.)

No Strings Attached opens January 21, 2011.  Via Hollywood.com:

no_strings_attached_poster_natalie_portman_ashton_kutcher

A guy and girl try to keep their relationship strictly physical, but it's not long before they learn that they want something more.

---

This one hails from Australia with the simple, but pleasant tagline "Nobody but you and me baby."  I like it.  I can't wait for this movie to break my heart.

Blue Valentine opens December 27th.  Thanks to D*hOLLYWOOD [via IMP Awards]:

blue_valentine_poster_international_ryan_gosling_michele_williams

The story of love found and love lost told in past and present moments in time. Flooded with romantic memories of their courtship, Dean and Cindy use one night to try and save their failing marriage.