Dark Souls - Escape the Tomb of the Giants/Catacombs(bypass bridge)

I just spent 2 hours trying to get out of the Tomb of the Giants. I really wanted the Large Divine Ember and Wrath of the Gods, so I rushed down to the Tomb, well before reaching the Lordsvessel. I had no idea how to get out. When I finally did figure it out, I came to the bridge in the catacombs and found out that I had never turned it, because I jumped down using the blacksmith shortcut. There is a way to get back, involving 2 secret walls and a lot of heartache. I recorded my escape so that I could upload it to help other people out. Man, that was a pain.