UPDATED: ABC and Canada’s Canwest have renewed freshman summer  drama Rookie Blue for a second season 3 weeks into the show’s run on ABC and Canwest’s Global Television. Additionally, ABC’s sibling the Disney Channel has ordered up a second season of Good Luck Charlie three months into the series’ freshman run.

Rookie Blue, produced by E1, has slid from its promising premiere on ABC but still ranks as the highest-rated new broadcast scripted series this summer. It has posted year-to-year gains for ABC in the Thursday 9 PM hour of 4.2 million viewers and 125% in Adults 18-49, from the net’s summer 2009 averages in the time slot. In Canada, the series premiere garnered a record-breaking 2.1 million viewers on Global – the highest-rated premiere for a Canadian drama series on any network in over a decade.

The Good Luck Charlie movie, being written by Geoff Rodkey, will star the series cast. The Disney Channel series is executive-produced by television veterans Phil Baker and Drew Vaupen, who created the show, and Dan Staley. In 2Q10, Good Luck Charlie ranked as the No. 1 series on TV among kids 6-11 and tweens 9-14.