navigation on photo-movie stuck...?

Since yesterday, when using the photo feature on any movie. navigating or using the arrows to go from one picture to the next is totally stuck.   The Photo information-box underneath as well, does not want to close.    I have a sneaking suspicion i somehow got waylaid by using a mobile version of IMDB on my apple computer...? Frankly i have no clue...... Does anybody know how i got into this mess with IMDB and how to possibly undo it ?

Thank you !!

Anthony