Film is the best listening material most learners will ever have, and it is a poor model for how to talk.
Ear training at natural speed, which no course provides. Vocabulary in context, which is how vocabulary sticks. And motivation, which is not a small thing — the learners who continue are the ones who enjoy the material.
Register. Film dialogue is written to be dramatic. The तू that sounds intimate on screen is rude in a shop. Declarations, insults and heightened emotion are all pitched well above ordinary speech, and a learner who absorbs them wholesale sounds like they are performing rather than talking.
One scene, three to five minutes. Watch with subtitles, then without, then with again. Take five expressions, not fifty. Watching whole films with subtitles on feels like study and mostly is not — you are reading English while Hindi plays in the background.
Production. Recognition and speech are different abilities, and only one of them improves by watching. That gap closes with a person and with nothing else.
Reading an answer is one thing; being corrected while you say it is another. EkGuru tutors teach one to one from $6 a lesson, and most offer a trial.