Sometimes when I add a very recent movie, the device scanner will pick a documentary of talk show instead of the actual movie. I have to go back, erase everything and add the IMDB link manually and 're-update'.
Maybe there should be a new 'option' under the 'Device scanner' tab to exclude these or a new sub-tab 'Genres' with a section called 'Genres to exclude' so I can skip these annoying mistakes.