## mathematics in films

The London Mathematical Society starts its 150th anniversary year with a bang.

**Alexis Wajsbrot**is a visual effects specialist who has worked on a number of high-profile films including Harry Potter and the Half-blood Prince, Harry Potter and the Order of Phoenix, Tim Burton's Sweeney Todd, and also on some of those visually stunning commercials you see while waiting for your film to start. His speciality is anything that behaves like a fluid: water, smoke, fire, even fur or cloth.

*Plus*went to see him to find out more.

**Phil Dench**tells

*Plus*how he uses mathematics to help bring these models to life.

*Plus*we firmly believe in our sanity, we're puzzled as to why. So we charged

**Charlotte Mulcare**with the unenviable task of sifting through five well-known maths movies and speculate towards an answer.

**José-Manuel Rey**revisits a scene of the film

*A beautiful Mind*.

**Joan Lasenby**tells us about the mathematics and engineering behind them.