I also conclude that the two different spellings of the hero's name as "Sinbad" and "Sindbad" hindered my search for this movie. Apparently they're both correct.

That's it, thanks! Weird that I checked lots of "Sinbad" movies and this one never came up. Also dumb A.I. never suggested this flic. Thanks a bunch, off to the Plex server!

Same here, I like this theory. It's now canon!

By the way, guys, do you know that Star Wars itself is also a ripoff from older material? Check the "Lord Tedric" series from E.E. Doc Smith. There's a "Black Knight in a huge Iron Sphere", and he is half man, half machine. There's laser words, the force, etc.

Yep, thanks, I think that's it! And the family dad is one of the "walking dead" stars. :)