Robert Downey Jr. Goes Hammer Haywire

Tropic Thunder star Robert Downey Jr. grabs a hammer and cracks open a barrel of sake to wish for the success of Iron Man during the Japan Premiere at the Tokyo International Forum in Tokyo, Japan on Thursday.

Downey Jr., 43, stands next to a man wearing a robot-powered suit (HAL – Hybride Assistive Leg).

RDJ also attended the Iron Man press conference at Shinagawa Prince Hotel in Tokyo, Japan on Wednesday.

WHICH RDJ FILM DID YOU LIKE better — Iron Man or Tropic Thunder?

50+ pictures of Robert Downey Jr. going hammer haywire…