In this task, you will be shown an extract from a movie plot and a question. You need to provide the correct answer for it. Short answers containing words that are present in the passage are preferred.

Let me give you an example: Twenty-year-old Will Hunting of South Boston is a self-taught, genius-level intellect, though he works as a janitor at the Massachusetts Institute of Technology and spends his free time drinking with his friends, Chuckie (Ben Affleck), Billy (Cole Hauser) and Morgan (Casey Affleck). When Professor Gerald Lambeau (Stellan Skarsgard) posts a difficult mathematics problem as a challenge for his graduate students, Will solves the problem anonymously, stunning both the graduate students and Lambeau himself. As a challenge to the unknown genius, Lambeau posts an even more difficult problem. Lambeau chances upon Will solving the problem but Will flees the scene. That night at a bar, Will meets Skylar (Minnie Driver), a British student about to graduate from Harvard, who plans on attending medical school at Stanford and gives Will her phone number before leaving., Question: How old is Will Hunting in the movie ?
The answer to this example can be: Answer: Twenty years
Here is why: This is a good example which results in a factoid answer.

OK. solve this:
Derek Thompson (Dwayne Johnson) is a local Ice Hockey player who is quite a celebrity and is nicknamed 'The Tooth fairy' for his defending prowess on the field. But he is getting older and younger players are gaining more attention. One of them in particular, Mick Donnelly, is rubbing his nose in the fact that he is going somewhere in his life, and Derek will be a nobody. Derek has a girlfriend, Carly (Ashley Judd) who has two kids - a girl and a boy. When the girl's tooth breaks, she is excited about the real toothfairy who will take away her tooth and place a dollar under the pillow. Derek doesn't believe one should have dreams as it is highly unlikely that one will achieve one's dreams and ultimately will be unhappy. So he tries to give it straight to her, that there are no fairies or any of the other imaginary creatures. Carly saves her daughter from the horrible truth and chides Derek for his stupidity. That night Derek receives a summons from 'The Department of Dissemination of Disbelief' from the Tooth fairy Land. He is thrust upon the job of a tooth fairy for two weeks, with a threat to extend the punishment if he doesn't do it with the spirit of a tooth fairy. When Derek finds out it wasn't a dream, his life changes drastically. He begins to have faith in magical tooth fairies and makes himself a better man. He even proposes to Carly and she accepts. The kids also love him., Question: What is Dwayne Johnson's nickname?
Answer:
Answer: 'The Tooth Fairy'