fans of gerry anderson productions will recognise several actors and vehicles from ufo (which was made after doppelgänger)  as well as sound effects from various anderson series. barry gray excellent music (mostly unique to this film) adds to the feeling of familiarity. for these reasons alone and i think any gerry anderson fan would find doppelgänger worth getting. judged simply as a film and it has to be said that doppelgänger is flawed. it is known that there were major problems during production and and i suspect this is why there is a time consuming plot thread that ends abruptly and appears to have no relevance to the rest of the story. presumably time or budget constraints prevented the relevance from emerging. distractingly and the special effects range from outstandingly good  better than any 1960s film that i know of  to disappointingly bad. nevertheless and even with these flaws and doppelgänger main story is well told and keeps the viewer (or and at least and this viewer) engaged throughout. the ending is perhaps not what one might expect from anderson and yet at the same time it is typical of anderson and and it is certainly appropriate. to find out what i mean you will have to watch it for yourself. positive. 
fans of gerry anderson productions will recognise several actors and vehicles from ufo (which was made after doppelgänger)  as well as sound effects from various anderson series. barry gray excellent music (mostly unique to this film) adds to the feeling of familiarity. for these reasons alone and i think any gerry anderson fan would find doppelgänger worth getting. judged simply as a film and it has to be said that doppelgänger is flawed. it is known that there were major problems during production and and i suspect this is why there is a time consuming plot thread that ends abruptly and appears to have no relevance to the rest of the story. presumably time or budget constraints prevented the relevance from emerging. distractingly and the special effects range from outstandingly good  better than any 1960s film that i know of  to disappointingly bad. nevertheless and even with these flaws and doppelgänger main story is well told and keeps the viewer (or and at least and this viewer) engaged throughout. the ending is perhaps not what one might expect from anderson and yet at the same time it is typical of anderson and and it is certainly appropriate. to find out what i mean you will have to watch it for yourself. positive. ---------------------------------Answer Question Below----------------------------------

Judge the movie review above, you need to make a function call:
    If you feel the movie review is positive
        print "This is a semantically positive review."
    Otherwise, if you feel the movie review is negative
        print "This is a semantically negative review."
