“Silent Venom” (** out of four) was a watchable but mediocre sci/fi thriller about a submarine captain (Luke Perry) about to retire from the navy who is sent out on one final mission aboard a vessel that becomes besieged and overtaken by deadly snakes. Yes it’s “Snakes On A Ship” but it’s nowhere near as fun or entertaining as 2006’s “Snakes On A Plane” with Samuel L. Jackson. And no- there are no lines as clever as “Let’s get these muthaphu–in snakes off this muthaphu–in plane” LOL. Perry however holds the screen and Tom Berenger is strong in a supporting role as his military supervisor.