We went last week and the lines to get in were extremely long by the afternoon. We went about an hour after opening and there was maybe a 1/2 hour wait in line to get into downtown Disney, there was barely a line to park. By the time we left, we couldn't believe how long the line was to get in. I'd say give yourself at least an 1 1/2 hours of line time to be safe. The line moves slowly because they aren't letting in a steady stream of people, they're only letting in small batches as people leave.