I'll tell you why so serious

I like movies that are aware of what they are selling... without [any] greater aspirations than to make people laugh and that's it.

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

All of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.