Answer the crossword and figure out the theme

This printable crossword puzzle has 10 clues. Answers range from 4 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

This type of spray was developed in Europe in the 1920's
In 2004 Gerard Butler played which disfigured musical genius? (5)
A word for evil or immoral
2019 remake directed by Jon Favreau (3)
Third of millenials face having to pay what for their entire lives?
1986 classic starring Rick Moranis (4)
French Novel by Victor Hugo first published 1862 (2)
Villian played by Johnny Depp in 2007 (2)
The cowardly lions costume was made of real lion skin in which 1939 film? (4)
You should never use water to put out what kind of fire?