Starbucks gained a wealth of free advertising thanks to a coffee cup being accidentally left in shot during a 2019 episode of Game of Thrones. Experts have said the publicity value of the blooper is into the tens of millions, which is an especially lucky twist considering that the cup wasn't even from the coffee chain itself – it came from the production's own craft services but was just assumed to be from Starbucks thanks to the similar colours.

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Product placements that made companies a fortune