Frankly speaking, I just watched the trailer and the first thing comes in my mind is the Korean Movie "Ditto 2000". I check the details instantly and it is not tagged as remake. "but why?"

The trailer is somehow or almost the same as the kdrama trailer. the walkie talkie vs. the old military radio. hahaha and knowing the time difference with brokenhearted character is the conflict. so somehow and i feel it; it is the same storyline as before.

but for the characters, well it is a well known and best actor and actress, so they will deliver it perfectly.

Thou let's see, still hoping it will not be the same storyline as the kdrama and jdrama original and remake movies.