The Nightmare Before Christmas
The film initially received positive reviews from critics; it has since gone on to receive widespread critical acclaim. On Rotten Tomatoes, the film holds a rating of 95%, based on 88 reviews, with an average rating of 8.2/10. The site's consensus reads, ""The Nightmare Before Christmas" is a stunningly original and visually delightful work of stop-motion animation." On Metacritic the film has a score of 82 out of 100, based on 30 critics, indicating "universal acclaim".
Digital 3D
For other 2D films, different techniques must be employed. For example, for the 3D re-release of the 1993 film "The Nightmare Before Christmas", Walt Disney Pictures scanned each original frame and manipulated them to produce left-eye and right-eye versions. In 2011, Disney became the first studio to convert 2D hand-drawn animation to 3D with the 1994 film The Lion King, and the 1991 film Beauty and the Beast. Dozens of films have now been converted from 2D to 3D. There are several approaches used for 2D to 3D conversion, most notably depth-based methods.