Back to the Future came out in July of 1985. It was directed by Bob Zemeckis and produced by Steven Spielberg. The poster design was done by Drew Struzan.
There are 2 different versions of the final one sheet. One was printed by the studio (Universal), the other by National Screen Service (NSS). The studio version can be found rolled. Folded versions probably exist, although we haven’t seen any. The NSS version is much harder to find, thus much rarer, and can be found both rolled and folded. Rolled versions of the NSS version are the most in demand. Both are 27×41in and 100% legit.
There is a reproduction of the studio version. It is undersized at 27×39 7/8in. It has the studio markings. There is no reproduction of the NSS version.
An advance poster also exists. It doesn’t have any markings. The tagline: “Coming Soon to a Theatre Near You” can be read at the bottom of the poster. It is 27×41in. It has become increasingly rare.
Pictures of the reproduction will be posted at a later time.
Back to the Future Advance 27×41
Back to the Future NSS One Sheet (27×41in)
Back to the Future NSS One Sheet Markings #2