Luts and Erkki Uotila were the co-directors of the first Fenno-Filmi production Salainen ase which premiered on 3 January 1943.
Erehtyneet sydämet was released in April 1944, with Uotila and Eero Leväluoma sharing the director's credits.
Edvin Laine, Jorma Nortimo and Teuvo Tulio were some of the other directors who worked for Fenno-Filmi.
The company was not able to produce commercially successful films and suffered from financial problems since the beginning.
When Mauno Mäkelä became the head of the company in 1949, efforts were made to merge the productions of Fenno-Filmi and Adams Filmi.