In all likelihood, you wouldn't fully understand it without some guidance. The Criterion DVD commentary is helpful. I usually flip on the commentary track if I start to get confused with a film.P.S. I never really understood The Seventh Seal, too cerebral perhaps?
I totally agree that they're rich enough to warrant rewatching though, they sort of develop with you. You can definitely gnaw on them for a while afterwards! 

lol
so I have to rely on my local DVD store. By the way, have you watched Celebrity yet? I found it the other day, but I remembered the critics weren't favorable towards the film, so I bought Open City instead, I adore Magnani.
Guess I'll have to rewatch it again and again..
x 10,000!
)