Vishnu Unnikrishnan of 'Kattapanayile Rithwik Roshan' fame was roped in for Mammootty's movie with Shamdat, 'Streetlights'. Unfortunately Vishnu got injured and doctors have advised him to take rest for two weeks. Meanwhile he has been replaced by comedian Dharmajan Bolgatty. Cinematographer Shamdat will be making his directorial debut with this movie where Mammootty will be playing an investigative officer. The shooting of the movie is currently progressing at Kochi.