Zooey Deschanel was 24 in The Hitchhiker's Guide to the Galaxy when she played the character 'Trillian'.
That was over 19 years ago in 2005.
Today she is 44, and has starred in 52 movies in total, 37 of those since The Hitchhiker's Guide to the Galaxy was released.
In The Hitchhiker's Guide to the Galaxy, I think Zooey Deschanel looks: