While moviegoers are long past the days of rushing to the movie theater to make it to their seats before the listed showtime, AMC is now giving a courtesy heads-up that’s hard to miss. Previews and various advertisements have almost always come before movies in theaters, and that aspect won't ...
lol whoever wrote this definition must have seen some absolute garbage
Miriam is the only dictionary which included that bit, and I assume it’s because you can describe any event start as showtime.
But commercials are not the show.