He plays a soldier who comes home for a quick leave, but during that two week stay, he meets and falls in love with a young college student, played by Amanda Seyfried.
Tatum has a dozen movie credits to his name, with most of his work being in the action genre. He was thrilled to tap into his romantic side to play a Nicolas Sparks character.
"I enjoyed it immensely," said Tatum. "It was almost more exciting than action movie because you just have to open us and put yourself out there a little bit."
This is the third film where Tatum has played a soldier on the big screen. He relied on several military consultants to help make sure his portrayal would honor those men who really do wear the uniform every day.
"It was nerve-wracking because I didn't want to look stupid or make them look stupid," said Tatum. "They really take care of you. All of the guys that were Special Forces in the film were all real Special Forces guys that ran the Q-Core at Fort Bragg. They are amazing men. There was four actors other than those core seven or eight. I'll never know what it is like to be a soldier, but hopefully I can wear the clothes right."
"Dear John" is rated-PG and is in theaters Friday.