I learned about Cinesummit through Ryan Connolly’s YouTube channel, Film Riot. Connolly has become a master DIY filmmaker, and over the years, he’s created a successful production company. He’s built a million plus subscriber base on YouTube, and has an impressive body of work.
Film Riot breaks down the techniques used to create the special effects used in Hollywood films. They also show viewers practical hacks on how to get cinematic results with DIY equipment. The content is great for every level of filmmaker from novice to expert. I highly recommend his channel.