What's Your Fell into a Black Hole of Simulation

The camera goes inside the black hole only when the video ends. Due to the extreme bending of space and time the black hole starts to fill up the whole view. The small sphere in the end is the light of the whole universe falling in after the camera from every direction. As the light falls in it gains energy and due to the limited speed of light it blue shifts to infinity. Even the faintest electromagnetic sources would turn in to visible blue light and beyond. You would also see the universe go very far into the future if you could stay there.

Yes, most definitely. The accretion disc is just material falling into the black hole, but as it gets closer and closer it's all getting tightly packed together, creating an energetic and dynamic system. Some of the material might be knocked away from the black hole by the energy of some of this dust and whatever. It could also slow down your spaceship somewhat... or even a lot, depending on the size of the disc and the energy of the material.

Actually, given big enough black hole, you'd cross event horizon far before the "blackening", and most likely wouldn't even notice it for a long time after that. Not that you'd be able to turn back, even though it would look like you could. Also, it's a common misconception everything would blacken with a universe thinning behind you like in this gif. Descent into a regular Schwarzschild BH would most likely look like this.

It's even crazier than this though. It's not that you can go somewhere else but gravity is pulling you towards something, it's literally that space itself is so warped by the massive gravity that every direction possible is a straight line to the center of the black hole. Going straight in any direction leads right to the singularity.

I'm borrowing this comment to say that I haven't seen a single black hole simulation account for light that shines "through" the blackness of the event horizon after you enter the black hole that reaches the camera. At the photon sphere, this would make the event horizon appear to recede and 100% of light from all directions briefly visible (some of which bends completely around the event horizon and arrives at a tangent to it at the photon sphere, including the view of yourself) before consuming the view of space as you pass through the "point of no return".