Two worlds collided on Monday when Uber Eats released a commercial featuring Mark Hamill, a.k.a. Luke Skywalker from Star Wars, and Patrick Stewart, who plays Captain Jean-Luc Picard in Star Trek.

In the ad, the two stars face-off against each other. They clash over the correct pronunciation of “tomatoes,” gear up for a swordfight with a baseball bat and a cricket bat, and then argue about Hamill’s daddy, presumably Darth Vader. All the while, their Uber Eats dinner gets delivered and all is seemingly well.

The Uber Eats advertisement isn’t the first time the Star Wars and Star Trek worlds have faced off. Beyond the famous rivalry of the two series, the actors also take part in the famous Marvel vs DC clash, with Stewart playing Professor X in Marvel’s X-Men and Hamill voicing DC villain The Joker on multiple occasions.

As always, such a crossover drew excitement and debate from fans of the two series, who took to social media to pick sides or to simply appreciate the iconic actors on screen together.