There were 50 guests in total, so half of them are women, which means there are 50/2 = 25 women.
There were also 15 men, so in total there were 25+15 = 40 adults.
The rest of the guests are children, so there were 50-40 = 10 children.
During the movie, 1/5 of the men left, so 1/5 x 15 = 3 men left.
Also, 4 children left.
So in total, 3 men + 4 children = 7 people left.
Therefore, the number of people who stayed is 50 - 7 = 43 people.
#### 43
The answer is: 43
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
There were a total of 50 guests in a movie screening of which half of the guests are women, 15 are men, and the rest are children. In the middle of the movie, 1/5 of the men and 4 children left. How many people stayed?

### Answer:
