@Bumpkin
Users can set a PIN requirement for either purchasing content, adding channels, or due to parental controls (watching certain content based on rating).
Go to https://my.roku.com/account and select "PIN Preference" and see if maybe you enabled Parental controls.
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For the most part, free movies are absolutely free. (occasionally, a movie may be listed as free on channels/apps that offer both free and buy/rent movies, and then turns out the free showing has expired or is listed wrong). Any movie or series on the Roku Channel is absolutely free.
If you want to make sure you can't be inadvertently charged, go to https://my.roku.com/account, and select "Payment Method", and remove your payment info/credit card. Then anytime something tries to be charged, you will be alerted with an on-screen box that says the transaction could not be completed.
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Feel free to post back the movie and the channel/app you wanted to watch it on and we can verify if it was actually free.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102