Jeff Bridges relied on the improvisation skills of Robert Downey, JR. while shooting IRON MAN - because he often arrived on-set not knowing his lines.
The Oscar winner, who played Tony Stark's business partner-turned-arch-rival Obadiah Stane in the 2008 film, only signed up because he was a huge fan of Downey Jr. and the movie's director Jon Favreau.
And Bridges soon realised when filming began he had a good team on his side - admitting the pair often had to help him when he got lost during a scene.
He tells Total Film magazine, "We would show up sometimes and we had this big scene to shoot and we wouldn't know what we were going to say. We were lucky to have Favreau and Downey. Both of them are master improvisers. It came off great."