A parody of the horror movies from the late 60s/early 70s. Things are in color, but the camera shots, bad acting, dialogue, etc. are all on full display.
A couple of familiar faces show up too. Names you won't know, but you'll recognize the faces.
Not as good as this one mainly because some of the jokes felt forced, and a bit too slapstick.
The story is that sentient foreheads from outer space are here invading Earth. They attach themselves to your forehead, and it's quite visible. Meanwhile, a scientist with a ridiculous secret is working on her theory that the forehead is actually where we have our intelligence, not the brain. You scoff, but do you know about foreheadizine? No? Then zip it!
It absolutely has charm and humor, but it definitely would only appeal to a particular audience.