In the expanded edition of "An Unexpected Journey," there is a scene featuring Bilbo's mom, Belladonna. Let's get that in the regular cut! In the book, she is described as "one of the three remarkable daughters of the Old Took, head of the hobbits who lived across the water." And Gandalf remembered her fondly,too. As there's no way in Mordor that Bilbo would have gone on an adventure without some Took blood in him, she is incredibly important to the story.