GArfield 3711 was the actual phone number for Central Casting at the time. In 1944 a second number, GArfield 3621 was added for men and the original number was reserved for women.
Although one of the players is identified by the narrator as being director Richard Thorpe, it is not Thorpe who is seen on screen, but an uncredited, unidentified actor filling in for him.
The $45/week salary that Jane Barnes earned would be equivalent to approximately $850 in 2021 (or a 6-month total of over $22,000).