SAN ANTONIO -— Eleven "Mad Max'' fans armed with fake machine guns were arrested after they surrounded a tanker truck while making their way to a movie marathon in a theatrical convoy.

As the group headed to San Antonio on Saturday, police received several calls from drivers who reported a "militia'' surrounding a tanker truck.

Police charged nine people with obstruction of a highway and two others with possession of prohibited knives in addition to the obstruction charge.

One of the organizers, Chris Fenner, said the arrests were unfair. He said he didn't know why anyone would have confused the costumed crew recreating a scene from "Mad Max 2: The Road Warrior'' — set in a post-apocalyptic wasteland — with a real threat.

"I honestly don't know how that could be, because 'Road Warrior' was so over the top,'' he said.