BIlly Zane Good Genes or Good Haircut?

12/2/2012 6:10 AM PST
Billy Zane is as cool as an iceberg.

Here's the 31-year-old "Titanic" villain back at the movie's premiere in 1997 (left) -- and 15 years later, the still perfectly browed 46-year-old at an event in Chicago this week (right).

He's one smooth fella.

More Good Genes or Good Docs: