O Dia Mais Feliz da Vida de Olli Mäki

In 2011 in Kokkola city theatre, director Juho Kuosmanen saw a play about Olli Mäki, who was also in the audience that night. After the play, the theatre director Jarkko Lahti posed together with Mäki for a picture. Kuosmanen said to Lahti that if he directed a film about Mäki, Lahti could play the leading role. Lahti took that as a promise and began training boxing. He even took a few official amateur bouts (which he lost) and thus it became obvious that he really would play Olli Mäki in this film.

A modern switchboard housing can be briefly seen in the hallway of Elis Ask's apartment.

Featured in Dinosaurus (2021)