The Giant Spider Invasion (1975) is a cut-rate effort at alien arachnid mayhem. A meteorite falls to the ground in rural Wisconsin, complete with mysterious geodes. Inside are what appears to be diamonds, along with spiders that are somehow not noticed, small and hairy and cute.
That grow big and ugly.
If you can get by the bad acting, this is a real hoot. We were laughing, hard, at some scenes, running them back to see them again. I really wonder who ended up with the big spider prop, which must have been carted around in a pickup truck. The plot’s actually not bad, and there’s a wee bit of social consciousness in that the local astrophysicist is a >gasp< woman, which is brought up rather pointedly.
But that’s where the good stuff ends. I suggest being slightly bleary when watching this one. Or an arachnid fan.