I just finished the game and saw the secret slideshow you get for completing everything. I was hoping to watch it again and I want to know if that's at all possible when I have already seen it.
Edit: It doesn't look like there is a way to see it again after viewing it the first time but someone did post a video of the slideshow on YouTube: https://www.youtube.com/watch?v=zp5G_h2Eu2c&list=FLANAwPY9MZRX5sPQ6GSngqA&index=2