There's no official place where the movies are listed. I've read you can call DCL to ask, but I've never done that.
You can expect releases from within the last year to be playing, with examples such as: Coco, A Wrinkle In Time, Star Wars: The Last Jedi, Black Panther, Avengers: Infinity War, Incredibles 2, Solo: A Star Wars Story, Ant-Man and the Wasp, and by the time you sail, Christopher Robin.