Besides the obvious Star Wars and LotR
  1. Tom Hanks Rom-Coms
    Sleepless in Seattle, You've Got Mail, etc.
  2. Teenage Drama Queen Main Character
    Clueless, Confessions of a Teenage Drama Queen, Freaky Friday, etc.
  3. Loosely Based on Shakespeare
    She's the Man, 10 Things I Hate About You, The Lion King, The Lion King II, etc.
  4. Not-so-loosely Based on Shakespeare
  5. Loosely Based on Austen
    Clueless, Bridget Jones' Diary, Austenland, The Lizzie Bennet Diaries, etc.
  6. Pride and Prejudice
    Thought I was going to say "Not-so-loosely based on Austen"? Ha. Tricked you.
  7. The Scarlett Pimpernel
    The TV movie, the actual movie, the BBC series. Literally any incarnation of this book.