I don’t think this is a bad movie poster. It does portray the basic facts of the movie: it is about a man torn between his wife and a hot other woman, and it has Chris Rock. And the white background is very classic.
Of course, it’s not very inspired. It’s the kind of poster that pretty much anybody could make and there are thousands of others that are just like it. It sells the basic elements of the movie but doesn’t itself add anything. So, it’s not very good either.
Oh, and the tag line? “In Marriage No One Can hear You Scream”? So very wrong. Too clever by half.