As Ruby states above, there is a problem with the appearance of your poll as a featured poll.
From what I can tell, you are using the Greek character Mu (Μ) instead of the Latin Em (M).
Most of the IMDb list and poll software handles the Greek character set properly. Unfortunately, the portion of the software that renders the Featured Poll does not properly handle the Greek character set.
Please update you list to change the two instances of Mu in Spider-Man to Em and ask for a re-push.