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The actor's most impressive physique overhauls.
In the wake of his retirement, here are his most stunning performances.
A super-soldier vs. terrorists.
Mark Wahlberg leads an action-packed franchise resurgence.
American teens move about as much as their grandparents.
Says director D.J. Caruso.
Thinking of trying out? Use these tips from real-life competitors.
He has companies and a $3 billion movie career—and he's not done yet.