Unfortunately, errors like this sometimes occur. A global Search indicates that "Simply Irresistable (1999)" is not playing for free anywhere. It is likely listed in error as being available for free on the Roku Channel.
It is available on Redbox for 3.99 or you can try a free trial of Starz on the Roku Channel. (currently 7-day free trial or you can subscribe on the Starz website and you get 3months for 5.00/mo = 15.00 rather than the usual 8.99/mo charge.
Look under the Featured Subscriptions or the Premium from within the menu inside the Roku Channel. If you go with the free trial of Starz, just make sure to cancel before the week ends or you will be charged. (note: sometimes these channels/apps charge you a month and pro-rate the monthly charge to reflect the free week, but I do not think Starz does this. I believe it is actually a free week.) At least you can watch your movie this way.
Paging @RokuKariza-D , @RokuMary-F , and @RokuDanny-R to look into this issue.
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