Dog Eat Dog Shot in 1964 in what was then Yugoslavia , '' Dog Eat Dog '' is a compellingly strange and sordid crime film starring Euro-sleaze stalwart Cameron Mitchell and Jayne Mansfield , whose billowing costumes were meant to conceal her pregnancy -LRB- with the future star of '' Law and Order : Special Victims Unit , '' Mariska Hargitay -RRB- .