I tried

I gave it half an hour. Tonight I tuned in, stuck it out till 7:30, and reaffirmed that I can't stand this movie. I know it's a classic, but to me, Rebel without a Cause is a just a big, CinemaScope showcase for James Dean. And I don't care for him.

He's just so fucking pretentious! He's no Brando or Clift or Paul Newman, the other Method Actors of the day. He's too self conscious and insincere. What I think is meant to convey aching sensitivity just reads as narcissism to me. I've seen two of his three major movies -- that's all he made, you know -- and I can't stand him in either one. I enjoy Giant better than Rebel, but I'm not afraid to say Rock Hudson gives the better performance.

There. I said it. I can't stand James Dean. This puts me out of step with most other classic film lovers, I suppose, but there you have it.

It's liberating to announce it this way:
I can't stand James Dean!