Directors

http://movieinternet.blogspot.com/search/label/Maverick

http://kuinformation.blogspot.in/search/label/Shankar
http://tostrength.blogspot.in/search/label/Amar

https://en.wikipedia.org/wiki/Film_director
http://filmdirectingtips.com/

25

https://www.google.com/search?q=25+Directors

40
http://www.theguardian.com/film/features/page/0,11456,1082823,00.html

50
http://www.ew.com/article/1996/04/19/50-greatest-directors-and-their-100-best-movies

100
http://www.digitaldreamdoor.com/pages/movie-pages/movie_directors.html

250
http://www.theyshootpictures.com/gf1000_top250directors.htm

http://www.slashfilm.com/interstellar-script-differences/

https://www.youtube.com/results?search_query=christopher+nolan+steven+spielberg

http://www.slideshare.net/search/slideshow?searchfrom=header&q=christopher+nolan+steven+spielberg