"R2B"'s promotion was held on July 31. Director Kim Dong Won, Actors Yoon Joon Sang, Shin Se Kyung, and Kim Sung Soo all attended the event.

Rain, who's currently in the military, sent a letter on behalf of his missing out. He wrote, "I'm Jung Ji Hoon. I play the role of Jung Tae Hoon. We've all waited a long time for this movie to come out and it's finally here. It's amazing how the movie we worked hard on since a year and five months ago is going to be released."

Rain's character Jung Tae Hoon is a reckless pilot. Due to his sudden entry into the military, he could not attend the evet. However, his thoughts were all included in his two A4 papers long handwritten letter. Though his handwriting was illegible, it had a lot of heart.

The letter continued to write, "I'm curious as to how people are going to respond. But, I do believe that sweat doesn't lie. This movie was made through the combined sweat of me and all of the staff. His love for the movie was very evident. He continued, "I would have loved to stand with my fellow actors to discuss the movie but I need to hold down the fort here."

He left a special message for his fellow actors: "These days I've become the trendy guy. Buy me some food, Yoo Joon Sang. Shin Se Kyung, you're doing all the promoting without me. I'm so sorry. I'll treat you out to something delicious later. Lee Hana, I think you're too serious. We're friends. I really don't have any feelings for you."

Especially noticeable was his message for Kim Sung Soo: "I heard that you told people in the interview that I can't make it through military life. To tell you the truth, I've adjusted so well here I'm thinking of staying." Everyone laughed.

Lastly he added, "I'm sorry my handwriting is so bad. It's always been like this." His witty comments were for his fans.

The movie "R2B: Return to Base" will be released on August 15.