I guess I always knew going into the movie that casting that part would be difficult. Oliver just felt likeable. I felt it would be hard to dislike this man. I don't know why, but I'm sure other directors have felt the same when casting him. Oliver is goofy yet formidable, smart but likeable... I didn't want the character of Alex to be nasty or demonised. I wanted him to be struggling with his actions.

I thought of the scene while writing scenes with Rebecca [Hall] and wrote it like an opening montage of showing where someone works. If you see a film about a car mechanic, you'd show the place they work and what they do. So, that's what I set out to do with Rebecca's character. I thought it probably wouldn't even make it into film but I ended up liking it.

My grandma has said many of the things her character says. But she was much nicer! I made her meaner for dramatic purposes.

I think that sometimes, romantic comedies have to be really broad, and that the plot of people falling in and out of love or whatever is not enough. Enough Said had that stuff, but I wanted it to be fun and funny while also grounded in reality.

If I had cast someone else who didn't have that kind of timing, it would have been leaden and one note. But Ann [Morgan Guilbert] made her really human and really funny without being caricatured or over the top. She feels like a real person.

What's the trick to writing a great female character? Make her human.

Marriages are so complicated that no one person is the culprit. But, I am really interested in class without really realizing that I am. It's more the manifestations of different classes that interest me.