Find a classic movie, where a person sits under the wall and drinks, and then a person drops poison into that person's hip flask along a line. What's your name?
The name of this film is Infernal Affairs. It's a Hong Kong movie, which tells the complicated relationship between a drug dealer and a policeman and their life-and-death struggle. There is a scene in which a person is sitting under the wall drinking, and another person drops poison into that person's hip flask along a line.