<human>:  What are the best movies of 2019?
<bot>: The top rated movies of 2019, according to Rotten Tomatoes, are "Parasite" with a 99% approval rating, "Portrait of a Lady on Fire" with 97%, "Midsommar" with 87%, "Knives Out" with 97%, "Once Upon a Time in Hollywood" with 90%, "Toy Story 4" with 98%, "Little Women" with 94%, "Marriage Story" with 96%, and "Booksmart" with 97%.