These 2 entries aren't duplicates:

• The reported one is a 40 episodes series.
• The other entry is for a movie. As indicated in its overview: "Arthouse Ultraman is a movie with four episodes edited together, theatrically released at Fantasia Festival 2006."

The listed IMDB value is for the series. I have removed it from the movie and locked the field.

You shouldn't lock the field, just make it empty. If someone registers the movie in "IMDB", we should be report that again to someone that must be unlock it... Feeders cannot add the same ID in 2nd entry here by themselves, that's why I wondered in my report. Obviously a moderator put over there the same ID in the first place.

@Almuric said:

You shouldn't lock the field, just make it empty. If someone registers the movie in "IMDB", we should be report that again to someone that must be unlock it...

This is the procedure, to avoid that someone else do the same error.

Feeders cannot add the same ID in 2nd entry here by themselves, that's why I wondered in my report.

They can, as one entry is a movie and the other a series.

Obviously a moderator put over there the same ID in the first place.

It wasn't a moderator.

Oh, I didn't knew that! Ok, I'll keep in mind if I find real dublicates. I mean... I know some but I've reported them years ago in "Letterboxd" and no one over there or in here did nothing.