The china used in the tea house when Kathy Bates, Lynn Redgrave and the other sisters is Royal Albert Old Country Roses. This china is frequently used in movies where tea is being served.
When Dirk and Grace go to the funeral home to "dress up" Victor Fox's corpse for the open-casket funeral, the funeral home manager is hesitant to allow them to enter until Dirk introduces Grace as, "This is my lawyer..." In England, Dirk would probably not have used the word "lawyer". It is more likely that he would have said, "This is my solicitor..." (although, in mitigation, the word "lawyer" is widely used, and even solicitors and barristers often describe themselves as lawyers).
When Maudey fires Dirk's pistol at the serial killer, the blast propels her off of her feet. In reality, this type of gun lacks the kind of blow-back power to do this, even in the case of a dwarf.