Novelty lenses are customizable and can be used in fantasy or science fiction to give an alien or mythical creature an extra edge of believability.
That is, at least until you see the women, most of whom are so well endowed that it passes the point of believability.
Be sure the quality of Santa's beard is the best you can afford to ensure believability.
Perhaps in its prime this film was something to get excited about, but if you're looking for believability - look elsewhere because you won't find it in Tim Burton's Batman.
Musically, Williams created a romantic counterpart to the onscreen action that included a musical recognition for fans of the original trilogy, which increased the believability of Anakin and Padme's love story.