Almost every major film/tv series...or search Amazon for plays or even better purchase Linda Seger's "Making a Good Script Great"...it's sold for Kindles in a new .kfx file type which renders gorgeous beautiful screenplay excerpts...
Edit from a post last year:
respectable eScripts: http://www.amazon.com/The-Grand-Budapest-Hotel-Illustrated-ebook/dp/B00IWROHY8/ http://www.amazon.com/Zero-Dark-Thirty-Shooting-Script-ebook/dp/B00AHCRQR6/ http://www.amazon.com/Inception-Shooting-Script-Christopher-Nolan-ebook/dp/B004SBBT0W http://www.amazon.com/Downton-Abbey-Script-Book-Season-ebook/dp/B00AV68GOA/ http://www.amazon.com/Inglourious-Basterds-Screenplay-Quentin-Tarantino-ebook/dp/B002JCJ6YS/
to "download" a sample for free select "cloud reader" in the drop down box on the right side of each ebook's page on Amazon.com....send a sample to your cloud reader or whatever it's called and adjust the font size down to the lowest, looks GREAT
Here are two eBooks with "samples" in their content pages but viewing these "sample" scripts are unavailable in the samples for the books themselves...in any case these two books claim to describe how .mobi scripts are made...those with a Prime account can read them for free: http://www.amazon.com/dp/B00F2OV5BM http://www.amazon.com/Publish-Screenplay-Kindle-London-Tracy-ebook/dp/B009KWS4JI/