Here is the scenario: You have 2 versions of the same movie, a director's cut and a theatrical cut. Director's Cut is 2:14  with 18 chapters Theatrical Cut is 1:48 with 16 chapters.   In the client UI (both web and Roku, and I assume all others), in the movie details page the time/length element, "Ends at" element, and all the chapters (number, thumbnails, etc.) are based on the 1st version alphabetically.   So, for our example, it would show a length of 2:14.