Looks like most critics bashed the movie for being too long, and that's why the US release was cut......and even then US critics really didn't care for the length. I was certainly checking my watch in the last 30 minutes.
That said -- if the movie had some kind of coherent narrative, a 2 hour run time would not be at all objectionable. Instead it does feel a bit like a 2 hour sitcom. I can't imagine what the 3 hour cut of the movie must be like.