For a few years ago I rented a movie which was really fun, but I don't remember what it called.
It's about a girl (woman) and her family. Her family is really strange, and I she has two twin brothers and a friend of hers is a lesbian(or something). When her grandfather dies they place him in the lake and tries to set the little boat on fire by shooting fiery arrows on it. But they keep missing. That's all I remember, but I think the movie starts with an "E" or something. Hope you know which movie this is!

Rocket Gibraltar (1988) (http://www.imdb.com/title/tt0096003/) ? Or is it a more recent film?

No, it's not that, but thanks for trying:) I think it's from the 90's or something!

The main character has brown hair and reminds me a little about "Kristen Stewart" from Twilight. I'll write more, when I remember something..

Eulogy (2004) (http://www.imdb.com/title/tt0349416/)

That's the one! Thank you SOOOOOOO much!:) You're an angel.. Can't wait to see it again :P

Happy to help :)