Just happened to me, but not after crash. I quit the program last night and was sure it was hanging, but I walked away from the machine and Premiere eventually quit.
Today, even after full system restart, I can't get Premiere to launch and it hangs under multiple user partitions at the same point.
un-installed & re-installed with no difference.
had to 'show package contents' and remove
to get the program to launch, which would point to a system Quicktime problem, but Media Encoder launches fine and uses the same two bundles...
I can use* the program now, so that's all I immediately care about.
*saving actuates the beach-ball of death and about 5 minutes of downtime for a relatively small project. I'm a little afraid to keep working on what will be a considerable project by the time I'm done.
Here's a page with troubleshooting steps for such QuickTime problems:
I wrote that for After Effects. but the same things apply to Premiere Pro.