Men of Steel (1938)
Doris Weston: Martha Stevens
Martha Stevens : Gee, I hope the dress rehearsal goes off smoothly.
Tom Bixby : Sure it will, Martha. Thanks to you. You've been mighty sweet to come down everyday and rehearse the gang.
Martha Stevens : Oh, it's been lots of fun. And, anyway, it'll prove my point to father - if it speeds up production in his factory. After all, a happy worker *is* the most efficient employee.