They were filmed at the same time and released at different times. If they needed set work they filmed all of the scenes in that set for all the movies, ECT. It's not as easy to get out of that quagmire as it seems.
All that said, I got really tired of the Dwarves = Scots joke. When Billy Connolly showed up I wondered if Craig Ferguson just wasn't available at the time. It was obvious they wanted a lighter movie than LotR but didn't take the time to figure it all out before filming.
They were filmed at the same time and released at different times. If they needed set work they filmed all of the scenes in that set for all the movies, ECT. It's not as easy to get out of that quagmire as it seems.
All that said, I got really tired of the Dwarves = Scots joke. When Billy Connolly showed up I wondered if Craig Ferguson just wasn't available at the time. It was obvious they wanted a lighter movie than LotR but didn't take the time to figure it all out before filming.