It is brilliant the way this film, which could be so earnest and politically correct, takes the opposite stance and presents us with a family where people are not acting perfectly but do seem very human with flaws we can all recognise. In fact I would imagine infidelity in the situation shown - with the biological father of your child, who you have not actually met - would be more likely to occur than in other circumstances, as your lives are already so intimately linked. But I don't know, really ... ! The refreshing attitude towards the characters means that they can at times come close to talking in an absurd, 'New-Agey' way without our being sure quite how we are intended to take this, but again I imagine it is meant to be funny ... in fact it is riotous! This doesn't stop them being highly likeable and able to move us when things go wrong. Annette Bening and Julianne Moore are both so good, they really have done something wonderful for lesbian families by acting in this film (as has Lisa Cholodenko by writing and directing it so brilliantly). And Mark Ruffalo does a very good job in a role that could have lost our sympathy, but doesn't. The confrontation between the women when the truth comes out is heartbreaking, the tenderness and hurt are so real. To then open the door and find the children listening outside I thought was very moving, and it was spoilt by people laughing in the cinema. At least on DVD you don't have to put up with this kind of thing! It is a mark of the film's achievement that it can effortlessly go from this to moments of farcical comedy, often involving sex, which the film presents without any inhibition ... and you feel, in spite of the crisis, that the kids really are all right. Really, a great film!