Answer: 2 hours and 15 minutes
Explanation: There are 60 minutes in an hour. 3:15 is equal to 195 minutes. 5:30 is equal to 330 minutes. To find the difference, we subtract 195 from 330 and get 135. There are 60 minutes in an hour, so we divide 135 by 60 and get 2 with a remainder of 15. This means that the movie is two hours long with 15 additional minutes, or 2 hours and 15 minutes long total.