Claiming to be very "adult and mature", the film manages to yank your chain, being far too precious and surprisingly conventional for it's own good.
It seems that the message is that marriage is hard - and to that extent the film does an adequate job of conveying a certain point in a relationship where it's all comfy and old hat, yet you start doing things by habit and rote instead of actually seeing or hearing what your partner has to say. This could be powerful stuff, but here comes off very ham fisted and over the top, to the point of borderline melodrama.
Add to this that the film has a gimmick, which for better or worse should be the focal point of the film instead of derailing it. The couple in question is a pair of lesbians, nicely portrayed by Annette Bening (dikey short hair and all) and Julianne Moore (at her 60's free spirit best). One could suppose that the message here is that lesbians are just like other people - their relationship has the same trials and tribulations, etc., but... the film steps way out of bounds in an effort to show that normalcy.
The film does a disservice by characterizing Bening as the stable, bring home the bacon, male part of the relationship - while Moore is the ditzy, artistic female - unable to focus on any one thing for an extended period, and is thus a failure at all her endeavors. The film then further missteps by having Moore, who is feeling taken for granted and not given the continued "nurturing" she apparently needs, hop into the sack with a male who shows her attention. WFT!!!! Talk about sending mixed messages!
Around this there is a sincere story (though a bit saccerine) about the couple's two children seeking their sperm donor "father". It all wraps up with a nice bow - as the film reminds us "the kids are all right". They may well be, but I couldn't help but feel that this is the type of film where you could see all the gears turning - and yet the message, at least in my mind, ended up not being what I believe the script intended - far from being a real look at a lesbian couple, I felt this contrived and almost surreal. As far as a tome to feminism - nope, missed the boat there as well - especially when showing Moore's weak willed fall for the first person that showed her any attention.
Too smooth in places, and yet a convoluted mess of hackneyed cliche in others, I felt like I was being preached at, yet couldn't help but think that this was intended as some grand gesture, but ended up signifying nothing at all.