I've never seen the movie, but from the photos I have seen, Romeo's pistol was a Para-Ordnance .45, the Commander size model. Juliet's pistol was a Walther P5 Compact. They did use some Berettas, but more Taurus PT92s. The skeletonized pistol is a Taurus, you can tell because the safety is on the frame. Movie and tv love Taurus's because they are reliable, and inexpensive. Many Berettas in movies, and tv are actually Taurus's.
I've been having such a hard time making/ finding Romeos gun. I found the one replica airsoft bb but it's in the U.K. And they don't ship to USA. Sucks. Can't find his gun in USA.
I want to make replicas of all the guns from this film eventually I love them