"It is loosely based on the German fairy tale "Rapunzel" in the collection of folk tales published by the Brothers Grimm." A quote from wikipedia. This is important because it lets us know that Tangled is similar to Rapunzel.
http://www.youtube.com/watch?v=3HW31f7nRl4
The link above leads to a song in Tangled that is important because it explains Repunzel's captive life.
http://adisney.go.com/disneypictures/tangled/
This is a link to the website for the movie tangled. It gives a good preview to the movie.
http://www.rottentomatoes.com/m/tangled/
This website gives a very good outline of the movie. The main points are outlined.
This picture is inside of Rapunzel's tower. Another example of what the setting should look like.
The two main charectars are shown here. Flynn Rider is on the right, and Repunzel is on the left.
The two main charectars are shown again. Rapunzel's tower is in the background. This picture gives an idea for what the setting should look like.