That was over 6 years ago in 2015.
Today she is 35, and has starred in 39 movies in total, 10 since While We're Young was released.
In While We're Young, I think Amanda Seyfried looks:
While We're Young scores 5.7 out of 10 on The Movie Database.
Amanda Seyfried's first acting role was as 'Karen Smith' in Mean Girls, released in 2004 when she was 18.