Sorry, this is not your car. It's my boyfriend's.
5 seconds sound clip from the Rain Man (1988) movie soundboard.
You can hear this line at 00:18:29 in the Blu-ray version of the movie.
Quote context
[...]
- And you think I should feel a little of that loyalty?
- I think you feel cheated out of your birthright by a man who had difficulty showing love.
- And I think if I were in your shoes, I'd probably feel the same.
- Sorry, this is not your car. It's my boyfriend's.
- Yeah, my dad lets me drive slow on the driveway. I'm an excellent driver.
- Are you sure that you drive this car?
- Look, my boyfriend is coming.
- Course, today's Monday. I always drive the car on Saturday, never drive on Monday.
[...]