After the outbreak of World War II, he initially ran a cafe at the Polish Theater, closed after taking over the building for the occupation "Theater der Stadt Warschau" (1940).

Director of this institution, Igo Sym convinced Samborski to perform in public theaters and play a role in the anti-Polish film Heimkehr.

It is probable that Samborski decided to cooperate with him to protect his wife, who was of Jewish descent.

[2][3] After Igo Sym was executed by the Polish Underground State in 1941, Samborski went to Nazi Germany, where he remained after the war.

[4] In 1947, Samborski was sentenced to life in prison in absentia for collaborating with the Germans, after which he fled to Argentina.