Not only does it have the lead, Odagiri Joe, but I found the comedy to be very similar, despite how different the story is and the subject discussed.

2046 is the sequel of In the Mood for Love. Both explore love and loss, and change of feelings overtime. You don't really need to watch in chronological order as each can be viewed as a separate.

Both set in the end of the warring era, but each represents the opposing view to the other. It is great to watch the different point of view and understand that era better. Justice vs Survival & strength!

Both talk about a man and a woman crossing paths but never meeting. This one is more calm and subtle.