The short answer is yes.
While most of the time you can see through window film, visibility depends on the lighting inside and outside your house. With privacy window film installed, someone on the outside of your house would not be able to see inside during the day. You would be able to see outdoors through the window film on a clear, sunny day. However, during the evening, if you have the lights on in your house, outsiders will be able to see directly into your house because the light is greater inside than outside the window.
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