punkini22, thank you for reaching out! I can definitely help out with the purchased movie.
If you want to just clear your history, I would recommend this article: https://www.xfinity.com/support/articles/x1-last-watched-clear-history
If you want to delete the movie permanently, I can do so through your account. Please feel free to send me a PM with your first and last name to get started! To send me a Private Message, please click my name “ComcastAlly” and click “send a message.”