sign outside says Mule is playing. but it is not listed on the web site. What times is it showing?

Sometimes movie theaters get posters, giant banners, and cardboard cutouts from studios to put on display to promote the movies coming out. This does not mean that particular theater will play the movie. For example, Cinetopia had posters up for "How to be a Latin Lover" but Cinetopia never actually showed the movie.

Best to go in and ask if you're still there or call.

I'd believe the website over the reader sign