As some special episodes are not related to the main series or for whole series that are shown as movies on IMDB (expecially when importing at first with another script like TheTVDB) I have written a little Script that imports those "Movies" as "Episodes". Unfortunately you have to import them one by one because of the Script Engine that resets every variable before processing the next episode. Therefor you always have to set Episode and Season for each import explicitly.
In order to achieve what is possible, you have to try the impossible over and over again. Hermann Hesse