Nia Vardalos does an incredible job about bringing out the humor in what it means to be a Greek American. I laughed before things were even said in the movie -- the Greek school scene, the Greek "boys" her dad wants her to marry, the brother, and the pomp & circumstance of the wedding. This is a funny movie, I think for non-Greeks, but for Greeks, it's a must. You have to see this movie. How often does anyone make a movie about Greek Americans anyway??
That being said, the dialogue could have been improved. Ian was a bit boring and flat of a character. I suppose that was the point, seeing as we were supposed to "see" Toula better. I think if Vardalos had realized what a hit she had on her hands, there would have been more polish on the movie. As it is, it is a diamond in the rough -- more or less.