I'll probably always be 'Timothy Spall's son' and it's something I'm proud of. Maybe one day as well as that, they'll say of Timothy Spall that 'He's Rafe Spall's dad'.

I'm sure that my father becoming seriously ill when I was 14 had a lot to do with my going from chubby to fat.

I've done loads of things people have never seen, dramas on BBC4 and plays upstairs at the Royal Court and the Bush, and because I didn't go to drama school, they gave me an education.

When you do a film, you get picked up in a car, lunch is free. Theatre is really hard, and you get absolutely no money.

My dad's one of the funniest men in the world. I grew up with him making me laugh so much I'd beg him to stop.

I watched what I ate for a bit and did a bit of exercise. I wanted to look alright because I knew I had to take my clothes off and I knew I was starring alongside some extremely attractive women! I think it was Humphrey Bogart who said that the only reason people found him attractive was because of the attractive women he played opposite. So, as audience member you go: "Well, if she would find him attractive, then surely I must too!" Playing opposite beautiful actress of the calibre of Rose Byrne and Anna Faris is amazing - it does a lot of the work for you.

My mum and dad have always enjoyed life, and it's something that's been instilled in me. I wake up in a good mood most mornings.