Amazing what side issues one can learn about while doing this sort of stuff.
1941 didn't sound right to me for an open car in Newark but, there was the film
and, I Googled it and there it was 1941. Still wondering, I blew up the photo and,
none of the names on the poster agreed with the 1941 film. Turns out there was a 1935
film, also called "Forced Landing" It starred Esther Ralston, which agrees with the
poster and so, the August 16, 1936 date is probably right.
The negative envelope gives that date (8.16.1936) so, I was really confused.