Bridgerton are gearing up and getting excited for the start of production on the second season of the hit Netflix period drama.«Luke Newton — who stars as Colin, the youngest brother — seemingly hinted that production has commenced, and celebrated with some behind-the-scenes throwback pics from the show's first season.Newton took to Instagram on Sunday to share a pair of snapshots showing himself and co-star Jonathan Bailey — who plays his older brother, Lord Anthony Bridgerton — on horseback