Invisible Opponent

{{short description|1933 film}}

{{For|the 1977 film|Invisible Adversaries}}

{{Use dmy dates|date=February 2021}}

{{Infobox film

| name = Invisible Opponent

| image = Invisible Opponent.jpg

| caption =

| director = Rudolph Cartier

| producer = Sam Spiegel

| writer = {{ubl|Philipp Lothar Mayring|Heinrich Oberländer|Reinhart Steinbicker|Ludwig von Wohl}}

| narrator =

| starring = {{ubl|Gerda Maurus|Paul Hartmann|Oskar Homolka}}

| music = Rudolph Schwarz

| cinematography = Georg Bruckbauer
Eugen Schüfftan

| editing = {{ubl|Rudi Fehr{{cite book |title=Selected Takes: Film Editors on Editing |chapter=Rudi Fehr |first=Vincent |last=LoBrutto |publisher=ABC-CLIO |date=1991 |isbn=9780275933951 |chapter-url=https://books.google.com/books?id=IIoK9au88v8C&pg=PA29 |page=29}}|Rudolf Schaad}}

| studio = {{ubl|Sascha-Verleih|Pan-Film|Robert Müller Filmproduktion}}

| distributor = Märkische Film (Germany)

| released = {{Film date|1933|09|18|df=yes}}

| runtime = 87 minutes

| country = {{ubl|Austria|Germany}}

| language = German

| budget =

| gross =

}}

Invisible Opponent ({{langx|de|Unsichtbare Gegner}}) is a 1933 German-Austrian drama film directed by Rudolph Cartier and starring Gerda Maurus, Paul Hartmann, and Oskar Homolka. The film's sets were designed by the art director Erwin Scharf. The film was made at the Sievering Studios in Vienna. The critics were not generally impressed with the film, with the Deutsche Allgemeine Zeitung describing it as an "unbelievable and unbelievably awful picture".Youngkin p.80

A separate French-language version The Oil Sharks was also released.Youngkin p.466