“I’ve just about had enough of you. Go that way. You'll be malfunctioning within a day, you near-sighted scrap pile.” “Just open the door, you stupid lump!"

On-screen, Star Wars robots C-3PO and R2-D2 had a somewhat tempestuous relationship, – but, underneath it all, it was clear the shiny, delightfully camp humanoid interpreter and the beeping, oddly charismatic tin can were firm friends.

Remove the metal suits, however, and it’s a different matter: this is very definitely not the cosy off-screen droid relationship you’re looking for.

Despite being the only two actors to have appeared in all six existing Star Wars movies – the pair are also set to star in JJ Abrams’s forthcoming Episode VII, The Force Awakens – 69-year-old British thesp Anthony Daniels (C-3PO) and 3ft 8in actor Kenny Baker (R2-D2), 81, famously just don’t like each other very much.

The first Star Wars film was made in 1977, while Episode VI, Revenge of The Sith, was released in 2005 – and since then, the two actors have been repeatedly sniping at each other in interviews.