FWIW the rating system was instituted in 1968 so you can see 8 out of the 10 top ten films on the AFI list, uncut.
Not that you'll necessarily like them all. I can barely sit through Gone With the Wind myself, but they all have a strong appeal to a lot of people and all in all they are mostly very fine films.
And a special plug for #57, which would easily be #1 on my list.