I used terranium t.v. app for watching movies online, but due to some reason, it cannot works properly, some people say its go shut down due to some problems. I also used Netflix app for watching movies and t.v. shows online but it's very expensive for me,
well, I was searching for something and then found Showbox app. really amazing app for streaming movies online. its works properly for me, I hope this suggestion works for you.