The biggest midnight opening ever has turned into the biggest opening day ever and -- knock on wood -- quite probably the biggest opening weekend of all time.

Warner Bros. was off to a shaky start this summer when "Speed Racer" grossed only $43.6 million domestically in its entire run. Now they're sitting pretty with "The Dark Knight" having grossed 50% more than that in just its first day. That's $66.4 million for Friday alone.

This overtakes "Spider-Man 3" for the top opening day slot and still stands a sizable chance of beating the web-slinger for the weekend gross. 

Christopher Nolan has said that he won't even start thinking about a third film until the right inspiration comes along but I'm betting some executives are sitting in a room at this very moment plotting a way to make that inspiration come sooner rather than later.

Topping Heath Ledger's performance is going to be nigh-impossible, but are there even any more villains that people will respond as positively to as the Joker? Let's hope that we get one organically grown and not studio-inflicted like Sony seems to have done with Venom. 

If you still haven't seen "The Dark Knight", what are you waiting for? I'm planning to catch it at least once more before the weekend is done. (Hopefully on an IMAX screen which I'm hearing from all over is an incredible experience.) We'll check back in soon with weekend grosses. Same Bat-time. Same Bat channel.