It’s almost summer, and I’m facing a familiar challenge: how to take my kids to all the new movies they want to see without blowing our summer spending plan. There are at least eight movies on our list between now and late summer — a big jump from the one movie per month I usually allow. We live close to an AMC cineplex and a Regal, so I checked NerdWallet’s tips for getting cheap movie tickets. Being the Nerd I am, I intended to build a spreadsheet to compare options.