Recording a movie

This task is about adding and subtracting with 24-hour time.

Lisa set her video to record the movie "Men in Black III". The movie started at 9:30 p.m. and ran for 1 hour and 50 minutes.
 

You may show your working out here

a) Write in 24-hour clock time when
 
 
i)
 
ii)
the movie began. __________
 
the movie ended. __________
 
b) Lisa forgot to programme the end time on her video and the tape ran on to its end, 4 hours after she began recording the movie.
 
 
i)
 
ii)

 

Write in 24-hour clock time when the tape stopped. __________
 
How long after the finish of the movie "Men in Black III" was the tape still recording?
 
__________ hours and __________ minutes