Sean Bean's Reddit AMA was bobbing along rather uneventfully this afternoon, with the British actor fielding queries about his new TNT show Legends - and then somebody asked him about working with Nicolas Cage.

Sean BeanSean Bean stars in new TNT series 'Legends' [Getty/Monica Schipper]

One wily Reddit user asked Sean, "Do you have anecdotes about your time filming National Treasure?" Of course he did.

"There was one where I went back to Nic Cage's house, and we'd had a few drinks, we were playing pool and he accidentally knocked over his prehistoric cave bear skull and smashed it. And he was really upset about it, and the next day went and buried it in a field." Amazing.

As well as professing his love for the Goldeneye N64 game - a classic of the genre - and chatting about how Harrison Ford nearly killed him, Bean also revealed how he used to get fan mail intended for Rowan Atkinson, aka, Mr Bean.

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Nicolas CageNicolas Cage, going wild [Getty/Ethan Miller]

"I used to get his fan mail, actually! I think they had the wrong address. I have gotten a couple of letters meant for Mr. Bean aka Rowan Atkinson," he said, "These letters would say things like "You're so funny, you make me laugh, with your big rubbery face" and I would say "you can't mean me!" Whenever I call people up and they say "who's calling" and I say "Mr. Bean" and you can hear people giggling on the other end of the phone... he's got a lot to answer for, that Rowan Atkinson."

Legends, based on the book Legends: A Novel of Dissimulation, stars Sean Bean as an undercover FBI agent who changes himself into a different person for each case. It premieres on TNT on August 13, 2014.