Yes! It's true.
But seriously, I think subtitled movies may help if your basic understanding is already quite decent. Otherwise I would think it is better to work on that first.
But i'm no expert in learning languages.
That doesn't sound too bad for the first match.
I'm actually completely shit when it comes to darts but well. Can't say I ever worked on being better
Nevertheless I like darts, I'm always watching the worldcup.