First, yes, the filmmakers could have been more considerate and filmed it in Beirut and hired local actors and crew if they wanted to truly pay homage to the city, but is it that despicable or offensive? Probably not. They might have made up for it by including all the clichés that the Lebanese folks like to hear and see, such as "ski in the morning, go to the beach in the afternoon, and party all night", and the girl in the bikini walking next to a veiled woman. And their over-simplified summation of the very complex nature of the conflicts seems to hold some truth and is probably just enough for the short attention span folk, who could only consume brief over-simplified summation.
But overall, the film is only slightly entertaining, the story is ok, nothing deep or moving, average suspense and action, but it's interesting how it's mixed up with the tragic events of the city, although most of them is made up.
Review of Beirut
