Star Wars fans hoping to keep fit have created a combat choreography class for Jedis-in-training.
The Golden Gate Knights class in San Francisco is run by Alain Bloch a self-proclaimed Jedi Master, who has a background in martial arts and stage combat.
Accompanied by Star Wars music attendees slice and parry around the dance studio clutching neon-glowing lightsabers.
People in a recent class in the city's South of Market district, including a couple on a date, said they embraced their quirkiness and had even converted some of the skeptical into the "Jedi order."
"At first they giggle because they think it's a little silly. Then they're like, actually that's kind of cool," said Julio Reyes, a student. "Then they start asking more questions."
However, Darth Vader-clad student Gary Ripper revealed not all Jedis-in-training are rooting for the good guys. Some came to embrace "the dark side of the force."
"I just love Vader, period," said the Darth Vader-clad student Gary Ripper. "Just his voice, the way he moved, the power of him. I just liked the powerfulness of him."