Video seen on the private Nova television channel showed the bus, and then other vehicles, being hit by an all-wheel-drive vehicle that appeared to have braking problems.
"It happened in a closed area that was rented out to the filmmakers for the weekend," said Prague police spokeswoman Eva Brozova.
Jirina Ernestova, spokeswoman for the emergency services, said the injured were treated in hospitals in the Czech capital.
"According to my information, there were only slight injuries," said David Minowski from the local production house Stilling Films.
Directed by Stephen Sommers, "G.I.Joe" -- starring Channing Tatum, Dennis Quaid and Sienna Miller -- is a live-action feature based on the eponymous action figure that is due out in August 2009.
In April 2002, a stuntman from the United States was killed in Prague during the filming of the Rob Cohen action film "Triple X".




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CBM Calendar
MAY 2008
★2nd - Iron Man
★9th - Speed Racer
★22nd - Indiana Jones and the Kingdom of the Crystal Skull
JUNE 2008
★13th - The Incredible Hulk
★27th - Wanted
JULY 2008
★2nd - Hancock
★11th - Hellboy II: The Golden Army
★18th - Batman: The Dark Knight
SEPTEMBER 2008
★19th - Whiteout
DECEMBER 2008
★5th - Punisher: War Zone
★25th - The Spirit
MARCH 2009
★6th - Watchmen
APRIL 2009
★3rd - Dragonball
MAY 2009
★1st - X-Men Origins: Wolverine
★TBD - Astro Boy
APRIL 2010
★TBD - Iron Man 2
JUNE 2010
★4th - Thor
★25th - The Green Hornet
2011
★May 6th - The First Avenger: Captain America
★TBD - Spider-Man 4
★TBD - The Avengers