The Day Time Ended (1979)

A man unknowingly builds his families new home in the middle of a vortex. No one notices until strange things start to happen, like aliens materializing in the front yard, or the young daughter touching a radioactive, green, glowing, alien-plutonium-pyramid type object.  Yup, he picked one crappy place to build a home.

Lots of confusing things happen, aliens knock on the door (very polite, these aliens), and there is a stop motion clay alien fight.  The vacuum cleaner goes nuts, and the little girl is the only one not scared when the tiny green alien comes dancing into her room and their house starts ripping apart in the vortex.

Grant - It's a time-space warp!
Steve - I don't think I really know what that is."

Yes.... no better words can sum up this film.

Puberty kills another child actor's career as Scott Kolden goes through an awkward teenage stage with a bad haircut.  Scott is probably best known for Sigmund and the Seamonsters, and Disney films such as The Mystery of Dracula's Castle.  I totally loved both of those when I was a kid, and would watch anything with Scott in it.

Also of note:

• Marcy Lafferty was married to William Shatner
• Chris Mitchum is Robert Mitchum's son
• Jim Davis played patriarch Jock Ewing on the tv show Dallas