1. Leonardo DiCaprio tried to make fun of his character with the line “I will just wait here”, when in fact this line was not originally scripted. James Cameron said that the line was “Too funny” to ignore it.
2. When Jack (Leonardo DiCaprio) is preparing to draw Rose (Kate Winslet), he tells her to “Over on the bed… the couch.” The line was scripted “Over on that couch”, but DiCaprio made an honest mistake and James Cameron liked it so much he kept it in. (This was the first scene Leo did with Kate and it was the drawing scene — he was nervous.)
3. When Leonardo DiCaprio’s character Calvin Candie smashes the palm of his hand on the dinner table, the actor broke a glass under his hand and really began to bleed. DiCaprio ignored it, stayed in character, and continued with the scene.
Oh, and that bit in Django where DiCaprio smeared blood on Kerry Washington’s face? She wasn’t expecting that.Kudos for her for carrying on with blood all over her face.