The Iron Man Mark VII helmet seen in The Avengers was made by the special effects studios, Legacy Effects. The eFX master patterns were made from the original master molds that were used to make the screen-used helmets. This helmet was custom fitted to Robert Downey Jr. to fit snugly so that it would not move or wobble when worn.
The helmet is made in 3 removable pieces, just like the original prop. The faceplate is held in place with magnets and in the screen-used helmets, magnets were also placed on the top of the helmet to hold the faceplate in the open position. The helmet appeared to open and closed by a digital process known as morphing. The faceplace and chin piece were also plated in real gold!
The eFX Iron man helmet is a faithful reproduction of the iconic helmet worn by Tony Stark in The Avengers.