I've noticed a couple times that the "star" actors are missing when using the imdb script. "AllActors=1" (import all possible actors) imports them but i'd prefer not to use that option.
for example,
matrix reloaded (2003) http://www.imdb.com/title/tt0234215/
the star actors: Keanu Reeves, Laurence Fishburne,.... are not imported.
I guess this because on the main page they are listed only under "Stars" and not in the table "Cast"...