It's not a movie wiki, but list of unusual deaths is my favorite destination:

https://en.wikipedia.org/wiki/List_of_unusual_deaths

At least one person in history has died from laughing watching a donkey eat figs, so that might be my preferred form of euthanasia if it comes to it.  

Maybe it's not wild but I am obsessed when something happens with an actor/actress and the Wikipedia changes immediately. It makes me laugh so hard. 

OK I just read that Wiki for Wild Mountain Thyme and I must now see this movie. Do they explain the dead parents' return in the pub? 

https://en.wikipedia.org/wiki/The_Book_of_Henry

I've read a lot of scary/disturbing ones, but that's not what I'm talking about. I'm talking about the ones that take a turn and you're like EXCUSE ME... what? For me, it's 

Please don't be shy with links as you share! I could use the reading material! 

What is the most chaotic movie Wikipedia you've ever read?