David Tennant's outfit for 'Doctor Who' saw bosses have to borrow it from an exhibition.
The 42-year-old actor is returning as the 10th incantation of the Time Lord for the show's 50th anniversary special, 'The Day of the Doctor', but as he departed the role over three years ago, and so getting the right clothes proved a problem for the wardrobe department.
Tennant explained to the new issue of SFX magazine: "I had one costume and I think they got one from an exhibition because they are farmed out across the country. I think we've only got two, and I think they found a stuntman one.
"So we've got two and a big one. It's slightly alarming - if they get ripped there's not a lot of replacements."
David admits putting the costume on again and stepping inside the TARDIS felt very "peculiar" as he had such mixed feelings returning to the role.
He said: "It was peculiar. In some ways it's completely familiar, because you do it every day for years so there's a sort of muscle memory to it, and yet at the same time you're going, 'What's this? Surely I'm too old to be doing this!' It's a weird mix of sensations."
David is joined in the episode by current Doctor Matt Smith, John Hurt - who portrays a secret incarnation of the Time Lord - Billie Piper and Jenna-Louise Coleman.
'The Day of the Doctor' airs on BBC One this Saturday (23.11.13).
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