I’ll admit it now: I love Tina Fey.  I will watch her do almost anything, so it’s lucky that she tends to be funny most of the time.  Amy Poehler cracks me up too and the two of them together just works.  You can tell they had a lot of fun making this movie.  It feels like they had a pile of pregnant woman and professional woman jokes lying around after an SNL writers meeting and decided to put them all together and make this movie.  So there are lots of funny one-liners and random moments.  Unfortunately, the plot never really quite works.  But it is still fun to watch, if predictable. 

If you just want a movie to veg out with, which requires no heavy thinking and should make you giggle, Baby Mama will fit the bill.