The maid tells Jimmy that there may be another telephone in the carriage house which is closed and all boarded up, but when Jimmy goes there he just opens the door that isn't even locked.
The British car that had Perry White's friend in it had its steering wheel on the left handside.
Tow cable is visible attached to front end of Sir Arthur's car while Superman is stopping the vehicle.
While Jimmy is talking with the news vendor, the shadow of the boom microphone can be seen moving back and forth across the top edge of the news stand.
If Jimmy Olsen read the comic book the news vendor gave him, he would know Clark Kent is Superman.