Okay, I'm sure someone has mentioned this at least once but I can't be arsed to check through all the replies.
Ani ni Ai Saresugite Komattemasu (My Brother Loves Me Too Much) - I think this was in the drama prequel before the film was released? I don't remember. But it was the scene where Setoka walks in on Takane kissing the other female doctor. That kiss was fucking hilarious. There was a lot of head swaying, but no lip movement. It was like me making my Barbie doll kiss Ken when I was 6. Holy shit.