By Nick Romano
Updated August 15, 2015 at 04:59 PM EDT
Alan Markfield

Olivia Munn continues her katana-twirling, high-kicking, and now wire-whipping training for X-Men: Apocalypse. Her sister, Sara Potts, recently came to visit the set of the superhero film, and she took video of the actress executing some pretty impressive wire work.

In one video posted to Instagram, Potts captured Munn front-flipping off a rig while brandishing her Psylocke sword in her right hand and an interesting blade in her left. The character is known for creating psionic weapons with her mind, and her weapon of choice is often a purple blade that juts out from the back of her hand. The prop Munn is shown carrying hints at its presence in the film.

In the second video, Munn is rehearsing a fight sequence in which she’s kicked backwards. Thanks to her light feet (and wires), she’s able to stay perfectly balanced as she prepares for her counter attack.

Earlier in the visit, Potts saw “movie magic” in action as Munn filmed scenes from X-Men: Apocalypse, and her daughter got to spar with her aunt. “Who is the grasshopper and who is the master?!?!” Potts wrote accompanying a photo of the two locked in combat. Munn responded in the comments, “I let them win.”

Check out more photos from the family gathering below.

X-Men: Apocalypse star Olivia Munn on Psylocke’s latex costume: ‘Day one, I popped my crotch’

See X-Men: Apocalypse‘s Olivia Munn show off some serious Psylocke fighting skills

See X-Men: Apocalypse star Olivia Munn’s impressive sword fighting skills

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