Ellen E Jones and Mark Kermode look to the silver screen to finally answer a big question. Cats or dogs - which are best?

In the cat camp, Ellen enlists the help of film critic and author of the definitive book Cats On Film, Anne Billson. They discuss their favourite film felines, from Alien to Catwoman.

Ellen also speaks to director Ceyda Torun and cinematographer Charlie Wuppermann, who are the married couple behind Kedi, an acclaimed documentary looking at street cats in Istanbul from the cats' own perspective.

And in the canine corner, Mark talks to second generation animal trainer and co-ordinator Teresa Ann Miller about her career and unique upbringing surrounded by some of Hollywood's most famous animals. They discuss Teresa's work on 2014 Hungarian drama White God, which included a memorable and moving scene featuring 200 real dogs, as well as what it's like to grow up with Cujo in your backyard.

Mark also speaks to Toby Rose, who is the creator of the Palm Dog - an award given every year to the best dog performance in a film at the Cannes film festival. They discuss why dogs deserve more acclaim and what exactly makes for a Palm Dog-winning performance.

Producer: Jane Long