http://hkmdb.com/db/movies/view.mhtml?id=4419
The current poster image for this film is a Thai poster for a 1965 film. There's a Chinese title on the poster (???) which is similar to the title of the HK film. I think this is what might have caused the mistake, since it seems like the poster is not related to the HK film at all. First, the HK film is a period costume film, while it is obvious that the Thai poster is advertising a film with a modern-day story. Second, comparing the plot of the Thai film (described HERE) reveals no similarities to the plot of the HK film. Unless I've missed something, this image should be deleted.

If nobody stops me in 15 days I will remove this poster.

Hi my friend - I suppose You are right and I added it by fault, I will remove that one

This image still needs to be deleted. bkasten, could you do it?

Yeah - there is a bug here I need to fix. Until then, in general, remove the image as a poster and then delete it.

Image deletion is active again for editors.

the image was deleted without being remove from the "poster tab" (thats why it was still showing), fixed

Thanks for the help, Harlock and bkasten.