The absolute best cinema experience I have ever had was a series of 70mm prints with 6 track dolby that were shown at the Gaumont Grand Ecran pl Italie in Paris (sadly closed now http://fr.wikipedia.org/wiki/Grand_%C3%89cran_Italie). I remember 2001 was a religious experience, and The Abyss was incredible. I saw one of the Imax 70mm prints of Interstellar and was not so impressed I think because the viewing experience was uncomfortable both the Imax seating and the dimensions of the screen.