There is a section in the opening with some strobing on the title text
(it doesn't repeat after 0:16).
The opening itself is a somewhat rapid slideshow of photos- I don't know if it counts as flashing but if you'd like to be on the safer side, the intro ends at 0:50.
Once the writer and director leave the writer's office, they start going down a really long hallway and through a lot of doors. this is a pretty fast-paced sequence and after 4:05 it gets REALLY fast up until 4:17