If you can make someone believe that you believe in the idea then I think that's worth a lot.

So many films end up being filmed in London or in the same places over and over again.

The film [Sightseers] is really the story of the journey of a relationship, so the killings are almost a metaphor for the trials they go through. We wanted people to identify with the experience of going on holiday and having a quarrel with your wife, boyfriend, whatever. We knew if we didn't crack that it would not be watchable as a film.

I always think it's just best to just make stuff and to carry on making stuff, even if it's not off your own back, because that's the only way... especially as a comedy writer, I make short films and then show them to live audience, so if they're laughing you know you're doing something right.

Ironically, there isn't much comedy film in Britain, which is quite surprising seeing that we're quite good at it.

I think it's very easy to get discouraged early on.

'Sightseers' started off as a character comedy double act.