I have been using batch update movie details in groups of 40-80 movies and then re-editing the comments field to get rid of the comments I had edited out prior to using the batch update process (I am trying to finalize the work on my 5,100 movie database). For information on the other problems with batch update movie details see my earlier postings.
I noticed today, quit by accident since I wasn't expecting any problems in the actor field, that Tyrone Power was listed as an actor. I then looked at several of the nearby movies and found Tyrone Power was listed as an actor in those movies also. So I looked at my entire database and it currently has 352 movies with Tyrone Power listed as an actor!!!!!!! Some examples: Breakout (1975) Tyrone Powers is at the end of the actor list playing "Border Guard"; The Castle (1997) Tyrone Power is at the end of the actor list playing "Olga"; and my favorite of these errors, Beaumarchais the Scoundrel (1996) Tyrone Power at the end of the actor list playing "Marie-Antoinette".
There is something seriously wrong with the batch update movie details tool (and I thought this tool had problems before).
DO NOT use batch update movie details for any reason at all until this and all the other problems introduced into your database by this worthless tool are completely fixed and verified by real users.