Steven Spielberg's sci-fi thriller ‘Disclosure Day’, about the leadup to a worldwide revelation that humanity is not alone, is set to release this Friday.

During the week, the Irish Film Institution received their 70mm rolls of the film. The IFI is the only place in the country where you can still see a 70mm film, but what are the differences and advantages of this format?

Joining Seán to discuss is the IFI’s Chief Projectionist, Paul Marky.