 According to Albert S. Ruddy and Burt Reynolds on the DVD  Commentary, for reasons unknown, Robert Aldrich didnt like actor  Michael Conrad (Nate Scarborough) and would always insult him by  calling him the "Polish Princess". Finally, when they were filming  the scene between Paul Crewe (Reynolds) and Scarborough (Conrad)  where Nate says "Theres only two things youve got left: Your pride  and your balls..." Aldrich like the scene so much that he rewarded  Conrad with a candy bar, which was the daily award Aldrich would  give out to whomever did the best work that day. Conrad, who had  endured Aldrichs insults throughout filming was actually moved to  tears. And Aldrich actually stopped referring to Conrad as the  "Polish Princess" for the rest of the shoot.