I've been trying to find a font that looks very close to the one shown on Explosions in the Sky's website ( http://www.explosionsinthesky.com/home.php ). Does anyone know any (very) similar fonts?

That's almost certainly handwritten, none of the reapeating letters are the same. Similars you can choose from the Handwriting-Department

I noticed it was handwritten. I should have mentioned that I've already looked through the handwriting section and I didn't really find anything similar. Thank you for your quick reply though. I did find a really nice looking handwriting font on another site, but alas it's not free. It's called Felt Tip Senior.