soooo....... and what´s now?

That could work. Go back in time and get Orlando when he was 6 and get Liv when she was 6, and bring them back to the present and film them running up to their father. Yes, that could really work. Why is this a movie?

A book that will be made into a movie if ever.

And Orlando and Liv doesn't have to look like 6 year olds since "The Hobbit" took place 60 years before the quest to destroy the Ring. And since Legolas and Arwen are Elves, their looks doesn't age that fast and they can still be played by Orlando and Liv.

Yes, Arwen looks like she is 120 years old in the movie and Legolas looks like 400.

What!?! Legolas is 2,391 years old and Arwen's age isn't too far from his. Making them still in their 2,000s at the time of "The Hobbit" making Liv and Orlando still eligible for the role.

Just to make this clear though. I am not insisting on making Legolas and Arwen be in the movie. I'm just stating some reasons why not.

I like how you said "...still in their 2,000s...", great stuff. I congratulate you. And you were making yourself clear before this, i was just being annoying.