Arnold Schwarzenegger banned his 'The Last Stand' co-star Johnny
Knoxville from carrying out pranks on set.  The 41-year-old star
is famed for his outrageous stunts and jokes from his time on
MTV show 'Jackass', but the 65-year-old action legend told
Johnny he didn't want to experience his jokes while making the
movie - which sees Arnold and Johnny appearing as Sheriff Ray
Owens and arms collector Lewis Dinkum who must protect their
town from drug lord Gabriel Cortez (Eduardo Noriega).  Talking
to The Sun newspaper, Arnold said: ''I forbade him. I told him
the payback would be very painful. Johnny is used to 'Jackass'
films, where the more something goes wrong, and doesn't work,
the better.  ''I said to him our movie was different and he had
to change his attitude. He was really good fun to work with - he
brought some good comic relief to the movie.''  However, this
isn't a sign of the 'Terminator' star - who was at the movie's
premiere in London's Leicester Square last night (22.01.13) -
losing his sense of