John Krasinski says his character's limp in action flick 'Fountain of Youth' is real, after the actor's legs locked up while running for a train stunt, but the crew offered him a surprising solution.

Krasinski and Natalie Portman play siblings in the adventure film, which also features a real-life family tie.

While promoting his new film, "Fountain of Youth," I did a wellness check on John Krasinski, six months into his Sexiest Man Alive reign.

The actresses stars with John Krasinski in the new action-adventure movie from director Guy Ritchie Eiza González stars with Natalie Portman in Fountain of Youth, a new action-adventure movie from director Guy Ritchie González tells PEOPLE she was initially "nervous" while talking to Portman on set because she's been a "ginormous fan" She says filming the movie felt like a "family experience" as the cast,

At the Fountain of Youth premiere in New York, Domhnall Gleeson chats with THR and discusses the difficulties and excitement he had filming in Egypt. Plus, he dishes on The Office reboot and the advice he got from John Krasinski and Steve Carell.