Continuity mistake: When Latika is a dancer, in one shot she does not have a nose ring, but in another shot she does.
Continuity mistake: When Jamal's gang steals parts of the car, Jamal is hit by the driver and gets his left eye swollen. However, in the scene when he washes his eye, his reflection in the water shows that 'his' right eye is swollen, then in the next scene it is his left eye that is swollen.
Continuity mistake: Jamal follows his brother to Javed's house and sees Latika. Later he is forced to leave the house, and while standing at the door, the collar of his shirt is lifted. Then the shot switches to Latika and when it returns to Jamal, the collar is in place. The shot changes again and as he stands outside, the collar is lifted again.
Continuity mistake: When Jamal followed his brother to his house he wore a light blue polo, but when he entered the house and got a chance to speak with Latika, it changed to a blue dark printed polo.
Continuity mistake: When Jamal follows his brother to Latika, the car changes; see both the right tyres.
Continuity mistake: On the final question, it is displayed on TV as "Dumas'", but on the close-up of the on-stage monitor, it says "Dumas's".
Continuity mistake: In the song 'Jai Ho', at a certain point the time display in VT station shows 00.58.37, but in the next scene the time is 00.58.33.
Continuity mistake: When Jamal arrives on a train to VT station, he is travelling on the first track. When he alights from the same train, he is on the second platform.
Continuity mistake: After Jamal used his 50/50 lifeline to eliminate 2 answers to the question "Which cricketer has scored the most first class centuries in history?", only answers B and D are left. Jamal flips between "A" and "D." He initially answers "A", which was Sachin Tendulkar. When pressed by the game show host he answers "A: Jack Hobbs." He then states "D final answer." "A" was not a choice after he used his lifeline, and would have been the incorrect answer.
Answer: I believe it was to demonstrate that as a "slumdog" he knew some things but not others. He obviously did not know the answer to the question asked on the game show that the police chief asks him about, so to defend himself, he proves that he DOES know some things: just things that not everyone knows.
Brad