This is one of the best things about Amazon, and I generally don't like Amazon. Excellent source for free films and TV series. No commercials throughout the movie or show like you have to put up with on Tubi and Vudu and offers a better selection of titles. There is one commercial before the movie or TV episode begins, but it's just for other available movies and shows. Some Amazon Originals have been outstanding with remarkable actors and stories. The app runs smoothly on all my devices and Fire Stick. Thanks, Prime Video!
