Complex sentence: The entrance to Hard Rock was used in the movie "21", and it featured a room where Ben and Jill made love, however in another inaccuracy in geography, it showed the "Bellagio" fountains as visible right outside their window.
Split into simpler sentences: The entrance to Hard Rock was used in the movie "21". The Movie "21" featured a room where Ben and Jill made love, however in another inaccuracy in geography, it showed the "Bellagio" fountains as visible right outside their window.