With Francine Stock.

Director Andrew Stanton and producer Lindsey Collins reveal why they took the plunge with the sequel to the 2003 hit Finding Nemo. They reveal how to cast a fish for a movie, what they look for in a sub-aquatic species and how to make an octopus more aesthetically pleasing.

Critics Larushka Ivan-Zadeh and Tim Robey go head-to-head in the quest to find the best space opera - Aliens versus Starship Troopers. Let battle commence.