I was part of the marketing staff for the Senna film when it was released in the U.S. in 2011 and I have an original movie poster, called a "one sheet" available. It is double sided, which is how you know it is authentic and not a reproduction.
The poster has been in rolled storage since the film came out in 2011 and I am offering it here.
It is 27" x 40" in size
It has never been displayed or hung and has no perforations, etc.
It is exactly as it came from the printer to promote the film upon release.
It will be mailed in a tube.
Please feel free to ask any questions