Mysterious Island
It is 1865 and Union prisoners use a military balloon to escape a Southern prison camp near the end of the Civil War. The balloon drifts for days and finally lands on a mysterious volcanic island with very unusual inhabitants. Also landing, in a better aircraft, is Rulu, a visitor from Mercury. She seeks a radio-active material that will enable her to manufacture an explosive that will destroy the world or, at least, the portion known as Earth in this 15 Chapter Serial from the 1950s.It is 1865 and Union prisoners use a military balloon to escape a Southern prison camp near the end of the Civil War. The balloon drifts for days and finally lands on a mysterious volcanic island with very unusual inhabitants.... Read more
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 India.