>I enjoyed it a lot. my 3 questions are....
>1. why didn't Graysmith show a picture of Leigh to Darlene's
>sister in prison since she saw Leigh at the "painting party"?

He, at that time, was convinced it was Rick Marshall. Leigh was out as a suspect.

>2. Why didn't anyone show a picture of Leigh to the pregnant
>lady who got thrown out of Zodiac's car?

They never went back into detail about the lady with the baby...my guess is that she was so shaken she decided not to cooperate with police anymore.

>3. Didn't Zodiac have the same black Mustang looking car for
>the killings? Did Leigh own that kind of a car??

Nobody really mentioned the car to police in the film...and I could be wrong, but it seemed like he was using 2 different cars for whatever reason. Perhaps because people couldn't remember what type of car he really had? I dunno.