First, there was "Snakes on a Plane". Next, we were given "Snakes on a Train" by poverty-row studio The Asylum. Now, with "Silent Venom", we are given (thanks to notorious director Fred Olen Ray) snakes on a submarine! In fairness to Ray, this movie looks a lot better than a lot of his past cheapies. They actually got a decent-looking submarine set, for one thing, and it's acceptably photographed. But those looking for low budget horror thrills will be very disappointed. The movie is pretty dull in its tone, the movie moves very slowly, and there's very little blood. (Also, the CGI snakes look REALLY bad and are not the least bit scary.) The movie has a lot of stuff happen offscreen or is never explains (Just what is that mysterious substance that's found on a pipe at one point?) Perry looks aged, and Berenger fans will be disappointed because he's hardly in the movie. To sum up, it's incomprehensible that a major Hollywood studio would handle this direct-to-DVD release.