Mark Hamill and Sir Patrick Stewart face off over tomatoes in new Uber Eats ad

Witness an epic clash of Star Wars versus Star Trek as Mark Hamill and Sir Patrick Stewart face off over the pronunciation of 'tomatoes' in the new Uber Eats ads.

In a dank warehouse, the two titans go toe-to-toe, brandishing baseball and cricket bats – respectively – in a trans-Atlantic ruck.

“Tonight, I'll be eating a veggie cheeseburger on ciabatta,” Hamill says. “No tom-ay-toes.”

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Emerging from the shadows, Stewart retorts: “Tonight, I'll be eating four cheese tortellini, with extra tom-aah-toes.”

While Stewart is clearly pronouncing the word correctly, things get pretty tense pretty quick. And then a bit confusing.

It's one of three new ads for the taxi spin-off food delivery service starring the sci-fi legends.

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The second finds them playing air hockey, while ordering in food, and another sees Skywalker and Picard going at it over the Connect 4 board.

Stewart also took to Twitter in the unveiling of the spots, saying: “Honoured to have battled it out with @hamillhimself to settle one of the greatest debate of all time: what’s for dinner?”

Talking about the perceived conflict between Star Wars and Star Trek fandoms, Hamill recently told Men’s Journal: “I have been asked on multiple occasions about a rivalry between Star Wars and Star Trek, but I have to say I feel like it is really apples and oranges.

“You can like either or both, or none of them. That is why this campaign struck me as funny, because I knew what they were doing pitting us up against each other.”

Stewart added: “I will admit that, at least for us on Star Trek, we have fantasied about a combined universe between Star Wars and Trek movie. There have been a lot of ideas thrown about on putting together two iconic universes, and having all of these great characters coming into contact.”