Sorsimus is generally right. By any objective standards, "The Diamond Connection" is a pretty bad film. The script is incoherent and the action sequences are poorly staged (including one of the least satisfying car chases and one of the least satisfying catfights ever). The "special effects" of the plane crash are positively embarrassing. But at least it moves fast enough and I was never actually bored with it. It also offers the chance to see that Barbara Bouchet was aging quite gracefully in the 1980's. Speaking of the 1980's, fans of that glorious decade will appreciate the music score, as well as the disco and aerobics sequences! *1/2 out of 4.
Review of Diamond Connection
