giant snake movies
ANACONDA (1997) is one. Not really a great film, but I have fun with it. You've got Jennifer Lopez to look at and Jon Voight's crazy character is pretty outrageous. The movie's over the top and has lots of CGI snake effects, but I still like it as a B-type flick.
I think SciFi Channel recently ran a made-for-TV giant snake movie. I forget the title. There are similar films like ANACONDA around. PYTHON (2000) is another, though I've never seen it. I did see SNAKES ON A PLANE (2006) at an outdoor theater on the beach this summer. Pretty crazy and it didn't sell, but I had a good time with it (though once was probably enough).