The current poster for the movie Harry Potter and the Half-Blood Prince is not the original poster, but it is locked so that the original poster cannot replace it even if it gets the required likes. You can discover the original poster by finding the line that has the name Harry Potter more consistent with the line that has the phrase and the Half-Blood Prince. The current poster does not achieve this consistency, so please unlock it so that users can put a like on the original poster so that it replaces it.