Wicked, Wicked

In 1973 MGM experimented with the new film experience "Duo-Vision" - This is advertised on this the first film in large block capitals. Reassuringly for viewers "No glasses - all you need are your eyes." Even the most absent minded cinema goer could not forget these so presumably all would be well! The concept failed to catch on and this is the only film we have seen advertising it. This US half sheet from 1973 has a few marks as seen including two small indentations by the "Duo Vision" notice.