Brian Koppelman's Vines on screenwriting. 6 seconds of advice at a time.(vinebox.co)2 points·by Alex_Jiang·13 lat temu·0 commentsvinebox.coBrian Koppelman's Vines on screenwriting. 6 seconds of advice at a time.http://vinebox.co/u/wyxqeeKCUdU0 commentsPost comment—