Item 4: article –Indiewire – (May 4, 2015) – http://www.indiewire.com/2015/05/marvel-ceo-doesnt-believe-in-female-superheroes-203801/
This interview discusses how the CEO of Marvel, Ike Perlmutter ‘Ike Perlmutter doesn’t believe in Female superheroes’, and how he believes that that female superhero movies are not profitable. The source is good as it includes an email from the CEO of Marvel and his opinion and the different Female superheroes.
Item 5: Article – New York Post (May 7, 2015) http://nypost.com/2015/05/07/marvel-and-its-sexist-superhero-movies-hit-a-new-low/
Item 6: Article – Vox (May 16, 2016) http://www.vox.com/2016/5/16/11684900/iron-man-3-female-villain-shane-black