India, May 14 -- Doomsday nearly a year away from its theatrical debut, Hollywood star Robert Downey Jr. has already stirred excitement among fans. In a newly surfaced on-set photo, Robert is seen holding My Next Breath, a book by fellow Avenger Jeremy Renner, while standing in front of what appears to be his trailer. Behind him, a printed image of Doctor Doom is visible, featuring a sign that reads: "Do Not Knock ... Trust Yourself." The moment, though subtle, has sparked speculation and buzz, as it marks Robert's quiet acknowledgment of his upcoming role in the film.

"Reading Renner's book and feeling stronger already.what a journey to wisdom . very instructive.a must read!" he wrote alongside the photo.

The 60-year-old actor, who fam...