That's pretty much what it is. It seems a lot of these killer snake movies think they can replicate "Snakes On A Plane", because that movie used cgi snakes, and took place inside an inescapable vessel. But that movie had Sam Jackson, Julianna Marguilles, and many other seasoned actors. This movie has Krista Allen, Luke Perry, and some no name people. Perry isn't nearly on Sam's level, and Allen, albeit hot, cannot be asked to carry such a poor film like this by herself.
Especially when she's not toting a gun ala Tuffy in "Feast". This movie has absolutely no merit because it recycles the same old storyline of U.S. government experiment gone wrong, and it also offers no action, suspense, or thrills. We just sit back and wait for the next CGI snake to bite some dude. Big friggin whoop! Then of course near the end, we come to the obligatory scene where the Doctor manages to convince the angry Lt. Commander with her hotness and sincerity that she didn't mean for the killer snakes to escape, he believes her, and thus they have to partner up to shut down the deadly vipers.
Did anyone expect things to turn out any differently? I sure didn't. And if you did, then you need to watch more horror movies. This film is everything but unpredictable, and to top it all off, the snake-attack scenes aren't even funny or remotely entertaining. No one gets bitten in a hilarious, dark-humored sort of way. And if a killer-cgi snake movie can't offer up some funny death scenes or attack moments, then what truly is it's purpose?
I have to admit though, Luke Perry and Krista Allen did the best they could under these circumstances, and I'm sure they were happy when they cashed their checks which they received for agreeing to star in this atrocity. Atleast they got paid, in some countries, they wouldn't have. A scary thought when you decide to attach "Silent Venom" to your acting resume. "Silent Venom" is probably as bad as killer cgi snake movies get. Even "Anaconda 3' and "Anaconda 4" were better than this junk.
Positives:Krista Allen eye candy, and the end credits.
Negatives:Lame snakes, lame script, lame plot, overall lame movie.