I caught about forty-five minutes of "Pardon My Past" (1945), starring Fred McMurray. Not only were dozens of fedora styles worn throughout, but one scene actually took place in a men's clothing store where fedoras were displayed on shelves in the bg.
http://www.tcm.com/tcmdb/title.jsp?stid=86238
http://www.tcm.com/tcmdb/title.jsp?stid=86238
