One of the things that I'm so proud of [about] that movie [Brokeback Mountain], was to see, within the past basically 10 years, how much has changed. When the Supreme Court [issued a ruling] just a little while ago, I felt like we had been part, a little part and parcel of that movement.

I try and find and access the parts of myself that still blindly believe and have faith in a lot of things. I don't mean to be cynical, but I've also discovered that I still have a lot of those. And they may not be where I expected them to be. Maybe I've been in relationships, and this is a movie about relationships, like romance relationships - so maybe I've been in some that have sort of made me lose my faith. But deep down inside, I still have blind faith.

There's always an intellectual side to the films Ang Lee's doing and to the characters, and there's such a deep knowledge when you've worked with the actors that he's worked with, on stage in particular, but also in film.

The best thing that I got was rehearsing with my father. It was always about the process of figuring things out, and trying something new, and having another take on something and keeping it alive.

As Uta Hagen would say, there's the representational actor and the presentational actor. My sister [Maggie Gyllenhaal] came up to me recently after she saw this movie, Southpaw, the movie I did, and she thought there was this exploration of that type of presentation, and a bit of representation as well, if I could be totally honest, where she was deeply moved.

I don't think I had any idea at the time how to work with someone as masterful as he is. And I don't think at the time I really understood what was happening. I think I was in a space where I was like: there are all these things. I was shooting all these takes with David, and I was just confused, as a person, and as an actor feeling a little too big for my britches and that this thing was happening and then also not having enough skill yet, and technique to know exactly where I was, and know about the character.

I know exactly what that movie's [Brokeback mountain] about. I can't define it; it doesn't tie up in a perfect bow. But it's about adolescence. It's about what it feels like - this isn't meant as a criticism, but like things I didn't relate to, which were high school movies. Where I'd watch it and I'd be like, "Well, am I like the kid that nobody likes? Or am I like the person who everybody [likes]?" I couldn't [tell]. I was like quantifying, putting me in a box. "This is my personality at that age" and "I'm this kind of person" just felt like bullshit to me.