If it were just based on the book, there would be no room in "The Hobbit" for a lot of the characters from "Lord of the Rings" -- except, say, Bilbo, Gandalf, Elrond, and Gollum, of course -- but since they're expanding the film into a larger story, and drawing from other aspects of J.R.R. Tolkien's tales, Frodo could make an appearance in part two of "The Hobbit," Elijah Wood told us when we caught up with him at Alicia Keys' Black Ball benefit for Keep A Child Alive.
"The secondary film would bridge the gap between 'The Hobbit' and 'Lord of the Rings' chronologically," Wood said, "so conceivably, it could be possible."
Since the films are still being written, "it's a ways away" before he would know, Wood said, but the trick is to have Frodo's appearance not seem like an anachronism, since he wasn't a part of "The Hobbit" adventure.
"That's the thing," Wood said. "I would imagine that if he does exist, it'll make some sort of sense. Otherwise, I don't think they would do it. I certainly wouldn't want to do it. I don't want to have a whole character piece that doesn't really exist that they're cobbling together."
But he has faith in the filmmakers "in whatever they're going to do in terms of bringing in any familiar characters back, just knowing their sense of upholding integrity."
To us, it seems like the only logical thing would be to introduce Frodo at the very end. Once Bilbo has returned from his adventure, with all his riches, he becomes the most able relative in Frodo's family to adopt him after his parents Drogo and Primula die in a boating accident on the Brandywine River. Wood agreed.
"Yeah, potentially," he said. "There's a lot we know historically about the characters where that would make sense. And personally, if I was involved, it would be to come on for a tiny little piece and have that be that."