A great idea here is to make a double matrix and fill it in for each statement. With double matrices, we know that if we have two values in either a row or a column, we can solve for the third value in that row or column. (Note: the bbcode for inserting images directly into posts isn't working for this type of link, so you can click through the links to view what your double matrix should look like at each step.)

Stem: https://cl.ly/3V3K1Y3l2w1H
Statement 1: https://cl.ly/0z3q1p0K3i18
Statement 2: https://cl.ly/3u0n1R3a1u45
Both: https://cl.ly/0N311R1Q0y3K

Because we never end up with a row or column that has two values in it (allowing us to solve for the third value), we can't fill in any other cells in the matrix. Since we are never able to determine the total number of males in the room or the total number of people who watch movies, we aren't able to solve for males who watch movies.