It may be visually sublime but is Interstellar, the new film by Christopher Nolan utterly fantastical?

Astrophysicist Dr Roberto Trotta reflects on just how how far Nolan pushed the fiction in his new scifi thriller on The Green Room.

Dr. Trotta also provides a dummy's guide to the terms handy to know before heading into the movie, such as The Fifth Dimension and wormholes.

Listen here for the full interview with Dr Roberto Trotta on The Green Room with Orla Barry:

Also on The Green Room, the cast of new film Out of Here talk about the struggle to bring their film to the big screen.

The man who told thousands of attendees at the Web Summit to stop everything explains his mission.

Former tabloid journalist Rich Peppiatt explains why he turned the tables on his ex-bosses in the movie One Rogue Reporter.

Musician Peter Doran performs live in studio and actor and storyteller Jack Lynch talks about the future of storytelling 

The Director and lead actor of Poison Pen reflect on Irish romantic comedies. 

The Green Room with Orla Barry airs on Saturday evenings from 9-11pm