Sandip Ray's Professor Shonku O El Dorado, based on Satyajit Ray's sci-fi story Nokurbabu O El Dorado will be out during Christmas 2019. No wonder, Professor Shoku's first screen adaptation is one of the most awaited films of the year. Veteran actor Dhritiman Chatterjee, who plays Professor Shonku in the movie speaks about the biggest challenges of making the movie. According to him, the main problem was to set Shonku's story in the contemporary world. "I have to play the character keeping in mind every minute detail mentioned in the original stories," he explained. However, he feels happy and thankful to get the opportunity of playing the iconic Shonku on the screen.