Formal Jeans

Do you iron your jeans? Are the words "formal jeans" an oxymoron? Mr. Hunting Creek asked me yesterday if I ever ironed my jeans. "Jeans are work clothes, real work clothes. It may be against Rebel Law to iron them. Never!"
"Spoken like a true Berkeley Girl" , he said. "What do you think of jeans worn to movie openings and other fancy events?"
"I would wear jeans to the movies, but on the other hand, I didn't star in that movie, so there are different expectations for my dress, versus what the star should wear. I think Movie Stars should dress up."
"You may be the last person on earth to think so."
Who still pays attention to movie openings, anyway? Sometimes I wonder what all the fuss is about. Still, to me that's a professional obligation on the part of the actors, so they should dress accordingly. (Am I turning into my mother in law? That's just what she would have said!)
When we were in college we wore our jeans constantly, until they could stand up by themselves. (Mainly because we had to pay to do laundry, so we'd space laundry use out accordingly.) I prefer dark wash, and I like to fade mine naturally. I won't buy prefaded or already worn out jeans. That's cheating.
What do you think? Are jeans acceptable formal wear? Do you iron your jeans?