Ashton Kutcher joins forces with an 'extraordinary' friend to work out

 Ashton Kutcher found the best workout partner in Natalie Portman.

 Actor recruits his 'No Strings Attached' co-star to join him for an intense workout.

That alone will motivate me,” he notes in the trailer.

That alone will motivate me,” he notes in the trailer.

Ashton is inspired by the "Black Swan" actress' motivation in all areas of life. 

Natalie is an exceptional human being and a great friend,” she tells Access Hollywood 

This fall, the entrepreneur and philanthropist will lead  TCS New York City. 

Ashton Kutcher 

Arrow