'While We're Young' Star Amanda Seyfried Opens Up About Growing Up Through Making Mistakes

MTV News spoke with the 'While We're Young' star for her take on what's different about how life changes between your early 20s and your late 20s.

Watch Ben Stiller And Amanda Seyfried Take Our Pop Culture Quiz

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See Ben Stiller And Naomi Watts Struggle Their Way Through The 'While We're Young' Trailer

Stiller and Watts star in the new Noah Baumbach drama as a married couple facing unexpected challenges when two strangers (Adam Driver and Amanda Seyfried) come into their lives.