The New York Post has an article and some images revealing the magic behind the process of combining IMAX 3-D with scenes from
Order of the Phoenix.
Quote:
"It's a very classic, good guy/bad guy finale," says IMAX Chairman Greg Foster, who reveals it took six weeks to convert the footage to the 3-D IMAX format, which will be shown on massive screens up to eight stories tall.
"Basically, we use computers to identify key objects and determine the three-dimensional depth for each object. It's a highly mathematical process."
The pictures from the article, which show Harry, Luna & the Thestrals being converted to 3-D, can be seen
here.