: Both broke taboos regarding drug use, sexuality, and teacher-student relationships.

Premiering in August 2011, the Russian Fisika ili Khimiya (Физика или химия) was produced by Costafilm. The creators faced a monumental task: preserving the DNA of the Spanish hit while making the storylines relatable to Russian teenagers and acceptable to local television regulators. Cast and Characters: The Russian Counterparts

The Russian school setting felt grittier and more grounded in the reality of post-Soviet educational institutions.

The release of the Russian adaptation sparked an unexpected conflict between two groups of viewers: the established fans of the original Spanish series and the general Russian television audience.

The iconic Spanish characters received local names.