See I'll never pay any attention to a critic, too many people read reviews then dont watch a film based on what they read, a film they might of enjoyed, a few hours entertainment.
The IMDB ratings too, there will always be people who give everything either a 10 or a 1 if they rate it but without fully getting it.
I seen a website review of Once upon a time in Hollywood that slated it because they had read "every book on the market" about Manson and based on what they know the film was garbage.
Also advertising, I know from experience in music of certain labels that always got great reviews of releases because there full page advertising revenue was vital, I'm sure the same happens in the film industry.