## Travelling salesman problem

*Travelling Salesman* is an unusual movie: despite almost every character being a mathematician there's not a mad person in sight. Moreover, the plot centres on one of the greatest unsolved problems in mathematics. We were lucky enough to speak to the writer/director Tim Lanzone about creating drama from mathematics.

*Travelling Salesman* movie is coming to the UK! Get your tickets here and find out about the P vs NP problem.

What do tying your shoe laces and Santa's Christmas Eve journey have in common?