I remember catching this on TV in the early 80's with my friend. He loved such films as much as me, so we were both excited to be sitting down in front of the TV one Saturday afternoon with our snacks and catch a film we had never seen before. Oh boy. Even then I noticed how the film was all over the place and made no sense. Grant's line of, "you know what this is don't you? It's a time-space warp!" struck me as stupid even then. In fact it struck me as being so over the top dumb that I have never seen the movie since, but that line and the film itself is rooted in my memory and won't go away.
lol...the whole movie is so unintentionally funny. If I could be a fly on the wall for one movie pitch this one would be high on the list. As said in the review, I bursted out laughing several times at it's idiocy.