Cách phân loại phim thớt đề cập là của Hong Kong, bắt đầu được sử dụng thời 1980s khi mà phim HK làm mưa làm gió ở VN. Ví dụ:
Level I - All Ages.
"The Wizard of Oz (1939)", "E.T. the Extra-Terrestrial (1982)", "Beauty and the Beast (1991)", "The Lion King (1994)", "A Bug's Life (1998)", "Finding Nemo (2003)", "Cars (2006)", "The LEGO Movie (2014)", "Stand by me Doraemon (2014)", "Finding Dory (2016)"
*Level II-A - Parental Guidance A
"Harry Potter and the Sorcerer's Stone (2001)", "Crossroads (2002)", "Harry Potter and the Prisoner of Azkaban (2004)", "Harry Potter and the Goblet of Fire (2005)", "Click (2006)", "Harry Potter and the Order of the Phoenix (2007)", "2012 (Film) (2009)", "Avatar (2009", "Harry Potter and the Half-Blood Prince (2009)", "Last Vegas (2013)", "Endless Love (2014)", "The Monkey King (2014)"
*Level II-B - Parental Guidance B
"Austin Powers: The Spy who... (1999)", "Snakes on a Plane (2006)", "Deadpool (Cut Version) (2016)", "Life (2017)"
Level III - 18+ or Adults Only.
"Showgirls (1995)", "The Dreamers (2003)", "Shame (2011)", "The Wolf of Wall Street (2013)", "Fifty Shades of Grey (Film) (2015)", "Deadpool (Uncut Version) (2016)", "All I see is you (2016)", "Fifty Shades Darker (Film) (2017)", "Fifty Shades Freed (2018)"