Marvel is one of the most popular, lucrative and successful media organisations on the planet today. Its comics, movies, characters and merchandise are some of the most read, watched, beloved and purchased in the world. You may think, therefore, that the company's entire history is all sweetness and light - but that's not actually the case. Marvel has experienced many lows - just like pretty much any other organisation tends to have - and moments of darkness, controversy and shame. This video will run you through just a few of them, so sit back, relax, and enjoy it - but don't forget to sign up to our channel to watch more like it in the future. Here are ten shocking secrets Marvel would not want anyone to know.