When will they update showtimes? I'm looking for Incredible 2 for Thursday the 21st and they are no Showtime's shown yet and I've been looking since Sunday.

I found em on the app

Marcus Cinema on their website has a little box so you can change the date and find the showtimes for the day you want to go. The showtimes for Incredibles 2 on this Thursday on super screen is 9:15,10:30AM, 12PM,1:20,4:10PM. On regular screen 9:30AM,10,10:50,11:10AM, 12:20PM,12:50,1:40,2,3:10,3:40,4:30,4:50,6,7,7:20,8:50,9:50,10:20PM. On 3D screen 10:45AM, 1:40PM,4:40PM.

Fandango is the best place to look at showtimes. They update very frequently

I also use Fandango.

I found up to date show times on Fandango.