Lack of good storyline.

It's an amazing and heartbreaking story.

The plot isn't so bad, but the pace of storytelling is too slow which makes people bored. Certain moments are so obvious and unnecessary for the main plot. I would've fast-forwarded those moments if it was an online streaming. The ending looks like implying a sequel, not sure if this movie will get one

It's a movie as timely as it is provocative and amazingly, for much of its running time, it is weirdly funny.