Matt Damon on Hollywood ageism; Can Lovelace take porn mainstream?

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Hollywood heavyweight talks to Francine Stock about his new sci-fi film Elysium and laments that 'grown up' movies are no longer properly funded or made for the over 35's. Physics professor James Kakalios is an unlikely star but consults big budget superhero adventures on the science of being superhuman. He explains how his love of comic books led him down this unlikely path. With the biopic of 70's porn star Linda Lovelace released this week, Julian Petley and Anna Smith discuss the pitfalls of trying to bring the story of porn to a mainstream audience. Author and film buff Scott Jordan Harris discusses the importance of iconic objects on the big screen and how they have seeped in to every moviegoer's consciousness. Producer: Ruth Sanderson.