Dialogue in the Opening: A lot rom-coms take a while to get going, but the dialogue in the opening few scenes to this film is Mamet-esq. It's fast paced, doesn't bother to explain itself and pushes us right into the film. Sadly it doesn't stay that way throughout, but it definitely has some good moments.
Jason Bateman and Mini-Bateman: It's a sweet, humorous relationship. It's got some heart and the two play off one another quite well. Bateman plays his usual character with a few extra details thrown in. He's great (as always) with dry humor and his child counterpart seems to be as well.
Jeff Goldblum: He appears to be mocking the film from within and yet for some reason it worked. His lines were one dimensional but he was at least entertaining and made certain dull lines more interesting.
The Bad:
Predictable: Though they add in the whole "semen" twist this is definitely a pretty standard rom-com, it follows the "sure-hit" structure to a T. It has enough jokes to that make you chuckle and enough heart to make you kind of care but there is nothing original here.
No Connection: Though they gave Bateman's character a lot of layers and he was a solid character, there is no explanation as to why they're together and there's never any real chemistry between them. I guess this film is a lesson on settling?
Convenient Ending: The whole movie seems to wrap itself up in a short montage, and there's no third act. The big second act "reveal" happens and then with one short conversation everything is settled. If it's something that easy to solve than it's not really a problem and then why should we care?
Lack of Change: The movie takes place over 7 years and despite a few grey streaks in Bateman's hair (which appear to come and go) and some extensions on Aniston, they look exactly they same. Would have been nice to see a little more change over such a long period of time.