I loved the 'foreign' story lines in this film; but found myself bored out of my skin in the Pitt/Blanchett segments.
I cant pin point exactly what made these bits so dull; if I had to hazard a guess, I'd say it was Cate Blanchett. I think Cate has a tendency to become easily dull and vapid in any role. I fear she's so used to playing the 'virgin queen' she'll never act well again (if she ever did).
Aside from the sparodic moments of the dull american storyline, I was totally encaptivated by the storylines of the 2 morrocan brothers, the mexican nanny and the Japanese, deaf girl. A whole movie dedicated to each of of these would have been amazing; but Pitt and Blanchett kept dragging it back to 'Hollywood'...and it didnt work.
I still give this film and 8/10, purely due to how interesting the other stroylines were. But I think Babel has taught us that independent films are independent films and hollywood is hollywood; and never the twain shall meet.