【正确答案】In 2010, a micro film named Old Boy was posted on a video site and became very popular. From then on, micro films begin to flourish. A micro film can last anywhere from three minutes to half an hour. Low cost coupled with easy shooting procedure gives many grassroots artists opportunities to make micro films. The preference for watching TV programs online offers a perfect opportunity for micro films. In this fast. paced society, micro films can tackle the problem of lack of entertainment time.