Film

The Marshmallow Test 2018

3 min TMDB 10.0 Animation Documentary

The marshmallow test became the poster child for the idea that there are specific personality traits that are stable and consistent. And this drives Walter Mischel crazy. "That iconic story is upside-down wrong," Mischel says, "That your future is in a marshmallow. Because it isn't."

Watch free in the UK

Not listed as free in the UK right now. You can still watch the official trailer below.