Mysterious Island
Starring Richard Crane, Marshall Reed, Karen Randle, Ralph Hodges, Gene Roth, Hugh Prosser, Leonard Penn, Terry Frost, Rusty Wescoatt, Bernie Hamilton
It's a action & adventure and fantasy movie, and has a rating of 5.9 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Austria.