Noi e la Giulia is not what you'd call a masterpiece, nor what you'd call a very good movie, actually. Indeed, in order to analyze what is good in this movie you have to contextualize it in its real environment, which is the Italian comedy. And recently the Italian comedy has gone real bad. That's why I think it is possible to give some credit to the filmmakers which believe in projects like Noi e la Giulia.
As a matter of fact, the movie provides occasion for some real laugh. Talking about the screenplay, there are lines which are good and lines which are extremely banal, but both made the audience laugh, and I guess this is what a comedy aims to. Also, you would expect a poor direction by Edoardo Leo, which is both on its very first steps and such a good-looking fellow that a prejudiced would think he would never made it to a good direction (not me obviously), but all in all it could have been worst, and it's supported by an interesting photography.
I like to see this title more as a starting point than as an arrival, and moreover I think I'd like to see more movies like this in the Italian cinema and less like the ones of Christian De Sica.