i saw it in movies in 73 n saw jaws 2 yrs later in same movies,2 awesome blockbuster movies in 2 yr period. exorcist was one of a kind and it was/is a masterpeice no doubt.
Was a little too young for the Exorcist in '73, but I saw Jaws in '75 and everything else that came after it.
IMO, the 70's was the best decade for all types of movies... The Godfather, Poseidon Adventure, The Exorcist, Young Frankenstein, Jaws, One Flew Over the Cuckoos Next, Rocky, Star Wars, Alien, etc. All fantastic movies and most of them had great soundtracks too.