
After 14 years -- and multiple box office hits and flops -- the 29-year-old Keanu of yore (left) and the 43-year-old version (right) that turned up in L.A. on Thursday -- look virtually unchanged. That's what happens when you never use facial expressions.

Here's gorgeous 24-year-old Christy (left) back in 1993 -- and an identically beautiful 39-year-old version (right) at a NYC event on Monday.
Looking this flawless doesn't get old.

TMZ