And you know what......The more you listen the better your speaking becomes!
IT'S A FACT!!
Choose a series that you watched before.
Watch series "without subtitles" I know it's difficult but it's the best way to improve your speaking.
Try to watch a series that you have seen before so you know the story but this time no subtitles in Spanish, English Japanese etc just let your ears do the work.
You need patience as it takes a couple of months but it WILL happen!! Good Luck
Remember we watch a series, We never read a series