Perhaps Love (2005)

In both movies Takeshi Kaneshiro is looking for the girl he hopelessely loves, and anyway, I really liked both ! The music was also quite similar...

The behind the scenes of celebrity life in both. Perhaps Love is romance focused, meanwhile TheKingOfDramas is much more about drama making BTS than romance, but does feature satisfactiry romance at mid-end of drama.

Love stories in the midst of fame. Perhaps Love about actors who are exes who work together and aren't maybe over each other, Rak Orl Akard is about an OTP who are secretly reality show stars which they aren't aware of (lol).

Both about love between 2 famous people. Perhaps love about two actors who secretly are exes who start working together(playing love interests!); TheGreatestLove about an actor and former kpop girlgroup member (girl who now guests on variety shows).