Review of Hello World
Art - It's CGI. The 2D portions are acceptable, the 3D portions are not. Nothing remarkable here. Sound - meh Story - Oh boy, where to start. Minor spoilers ahead. The first half had me quite interested. Only, halfway through it devolves into your typical sci-fi story about time-travel with "quantum" in it. It's just horrible. "Quantum" here is an alias for totally weird, of course. Nothing in the middle makes any sense. And there is honestly nothing deep about it either. It's just a guy about to die suddenly getting a lot of powers. It's cliche and downright cheap. This is the stuff you get when youhold an author at gunpoint and ask them to write a sci-fi story with time-travel in 2 days.
Then you have the fight scenes.
CGI galore! You have fight scenes involving someone swinging around a book-on-a-chain(yeah, really), you have people jumping on cinnamon buns ... you get the idea. I wouldn't complain if this was something from Mario, but seriously, I cannot find any redeeming point about the fight scenes.
Characters - Now these are actually good. Only, they get stuck in a story that is an utter mess. I feel bad for them, really.
I can't recommend this movie to anyone. There is plenty of good science fiction around - read/watch that instead of this.