You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you will be shown an extract from a movie plot. You need to read the extract and create questions that can be answered from the extract. Once you create a question you also need to provide the correct answer for it. Write your answer like "Question: your question, Answer: your answer". The questions should be well-formed and grammatically correct. The questions should be completely answerable from the given passage and should not require any external knowledge. Subjective questions are not allowed. Short answers containing words that are present in the passage are preferred. Create questions that result in factoid answers. A simple rule of thumb to decide whether a question is a factoid or not is to see if two different people with average reading/comprehension skills would come up with the same answer after reading the passage.

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.
Solution: Question: How old is Will Hunting in the movie ?, Answer: Twenty years
Why? This is a good question which results in a factoid answer, and the answer is correct too.

New input: The film tells the story of two good friends and housemates, Andrew (Andrew Miller), an agoraphobic travel agent who works from his home, and Dave (David Hewlett), a loser who works in an office where he is treated with contempt. As unpleasant as their lives are, things get much worse within the span of one day: Dave is fired from his job after his girlfriend frames him for embezzlement, Andrew is falsely accused of attempted child molestation by a young girl extorting cookie sales, and both are informed by a city building inspector that their house is slated to be demolished by the end of the day to make way for a freeway expansion. Both of them hide away inside the house as police, city officials, and outraged neighbors surround it, clamoring for the two to come out. The two frantically look for some means of escape until suddenly and abruptly all goes quiet. Confused, Dave and Andrew open their front door and discover that the entire world beyond their house is gone, replaced with a featureless white void. Though initially frightened about their new circumstances Dave and Andrew take the development in stride, adapting to their new-found isolation and treating it as a much needed vacation. Eventually, after a simple test reveals that the nothingness surrounding them holds a flat, featureless, and somewhat springy surface, the two set out across the empty plane in order to explore their new surroundings, leaving a trail of household items behind as a means of finding their way back.
Solution:
Question: What did Andrew and Dave see when they opened the door?, Answer: A white void