Note that many websites have their own advertising, unrelated to adware.
From TOS of MovieLand,
"...BY PARTICIPATING IN THE MOVIELAND / MEDIAPIPE FREE TRIAL OFFER THE MEDIAPIPE SOFTWARE WILL ENABLE YOU TO ACCESS THE AVAILABLE CONTENT FOR THE PERIOD OF TIME THAT SPECIFIED ON THE ADVERTISMENT YOU HAVE CLICKED THROUGH.
IF YOU DO NOT PROVIDE PAYMENT INFORMATION DURING THE TRIAL PERIOD OUR BILLING SOFTWARE WILL BE ENABLED UPON THE EXPIRATION OF YOUR TRIAL PERIOD. THE BILLING SOFTWARE WILL RUN ON YOUR COMPUTER, DISPLAYING POP-UP WINDOW REMINDERS THAT PROVIDE YOU WITH VARIOUS METHODS OF PAYMENT FOR THE ANNUAL LICENSE. THESE POP-UP WINDOWS WILL APPEAR MORE FREQUENTLY UNTIL YOU CHOOSE ONE OF THE PAYMENT OPTIONS AND PAY FOR THE LICENSE. THE BILLING SOFTWARE IS SOLELY DESIGNED TO PREVENT FRAUDULENT AND UNAUTHORIZED USE OF THE MEDIAPIPE SOFTWARE..."