The upcoming Netflix film Enola Holmes, which is based on the book series by Nancy Springer, is being sued by the Conan Doyle Estate for copyright infringement and trademark violations. The movie, which stars Stranger Things' Millie Bobby Brown as Sherlock Holmes' adventurous sister Enola, is not a part of official Sherlock Holmes canon though it does feature the character of Sherlock Holmes, here played by The Witcher and DCEU's Henry Cavill.