Sophie Hoeller Keanu Reeves on the set of “Generation Um…” at 11th Street and Avenue A this morning.

Sophie Hoeller Mr. Reeves signs an autograph (top) and in between takes.

Hula-hoops, cowboy hats, denim jackets and glitter filled a courtyard at 11th Street and Avenue A this morning. Dozens of extras were in the midst of filming a “flash mob” scene — a random assembly of people performing a planned bizarre act — for “Generation Um…” a new movie starring Keanu Reeves.

Unfazed by the colorful scene in front of him, the star was on site, looking bored between takes. He channeled his “Matrix” character, Neo, by wearing black from head-to-toe.

While getting touched up by hair and makeup, Mr. Reeves gave an autograph to an excited fan named Elias.

The indie drama follows John (Reeves’ character’s unconfirmed name) and two friends (played by actresses Bojana Novkovic and Adelaide Clemens) through “a world of sex and drugs…and chaos,” according to Cinemablend.com. The film is being made by Voltage Pictures, the studio that produced “The Hurt Locker.”

The flick has been filming in the East Village for the past two days, at locales such as AlphaBet Café. A crewmember confirmed that this would be their last day at this location. The movie, which is set in LA, has also been filming in Greenpoint, Brooklyn.

Sophie Hoeller The scene being filmed this morning depicted a “flash mob.”