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Open Matte means the movie is presented with more picture visible at the top and bottom compared to the standard theatrical widescreen (usually preserving the original full-frame camera negative area). For Iron Man 2 , this version has appeared on certain TV broadcasts, some international Blu-rays, or streaming sources in specific regions.

It sounds like you're looking for an version — likely a guide on where to find it or how to identify it. Searching for- Iron Man 2 Open Matte in-All Cat...