Yes...it depends on how large the crowd is waiting to get in. Usually it can be as early as 15 minutes but I wouldn't go counting on getting in early. If it happens fine...if it doesn't fine.
I'll be there the second week in September, so I don't think they'll be much of a line. On top of that we are staying in a partner hotel, so the only people parking (at 7:00) will be other people that are staying at a partner hotel. So I should be good!