Do employees at successful companies like Pixar, fess up when they make mistakes?

Usually from what I’ve seen, people either like to give you excuses or say “wasn’t me” when something goes wrong at work.

Do people at successful companies (like Pixar) admit right away when they make a mistake. (ex. I forgot to turn on the particle effect so everything you just sent to that render farm, came back bad) OR do people still try to cover things up no matter where they work?

I just want to know what the attitude is at these places (meaning companies who are winners)