India, March 6 -- Hollywood star Robert Downey Jr. is taking his return to the Marvel Cinematic Universe (MCU) very seriously, according to Avengers: Doomsday co-directors Joe and Anthony Russo. In a recent interview with Entertainment Tonight, the filmmakers revealed that the former Iron Man star is fully immersing himself in his new role as the iconic villain Victor von Doom, a.k.a. Doctor Doom.

"It's a very intense process developing the character," Joe shared. "He's so immersed in it. He is so dialed in," Joe added further. The Russos further revealed that Downey, 59, has gone beyond the usual preparation, actively contributing to the character's backstory and even coming up with costume ideas. "I think he just loves really rich, thr...