Mr. Wacky(2006)

Overview:

In order to inherit his grandfather's fortune, an incorrigible playboy agrees to teach high school for two years in Mr. Wacky, a bland, mostly irritating comedy from newbie director Kim Dong-Wook. To its credit, the film improves considerably in its second half, but by that time, some will likely find that it's a case of too little, too late.