(http://www.mondo-esoterica.net/title_img/Phoenix/title.jpeg)
Found this for 50p at a poundstore. It is one of those ultra-obscure sci-fi films that you only find on late night television on one of those weird movie channels that show more exercise machine adverts than actual films.
A couple of good ideas make the plot, but the storyline is just a mix of tired cliché and the sets are clearly suffering from the tiny budget but the acting is surprisingly good.
Not even on DVD in the US, but not that this really matters as the film is not really worth trying to find.
Check out the full, illustrated review: Phoenix review (http://www.mondo-esoterica.net/Phoenix.html).
Thanks for posting, I'll seek one out. Right up my alley.