They have a Facebook page and post movie schedule there. At least two weeks out.
It is normally posted what movies are going to play the day before. The movies start when it gets dark. I suggest you get there an hour or so earlier there is normally a long line to get in.
The only time you can get movie showtimes is usually the same day or the next day. You can see current showtimes here: https://www.cinemaclock.com/theatres/auto-vue-drive-in-colville
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