William H. Macy - who co-stars with the 20-year-old in upcoming movie 'Bobby' - says Lindsay Lohan's lax attitude is disrespectful.

He fumed: "You can't show up late. I think what an actor has to realize is that when you show up an hour late, 150 people have been scrambling to cover for you.

"There is not an apology big enough in the world to have to make 150 people scramble. It's nothing but disrespect."

Lohan's professional reputation suffered a blow earlier this month when she
was issued a letter from film producer James G. Robinson, calling her
"irresponsible and unprofessional" after she didn't turn up for work on her
new movie 'Georgia Rule'.

56-year-old Macy adds Lindsay is not the only star who takes liberties on set.

He revealed: "A lot of actors show up late as if they're God's gift to the film. It's inexcusable, and they should have their butts kicked.

"I worry about these young kids who in the span of one year become millionaires and powerhouses. It's too much power for a kid that age to handle."