Mårlind attended film program in Stockholm University, Sweden and American Film Institute along with Björn Stein, with whom he would start a long-standing directorial partnership. The duo's debut was the 2005 film Storm, followed by the thriller Shelter, starring Julianne Moore and Jonathan Rhys Meyers and based on a screenplay by UK screenwriter Michael Cooney. Mårlind and Stein then co-directed for Screen Gems 2012's Underworld: Awakening, which grossed over $160 million worldwide. Their latest movie is called Shed No Tears (Känn ingen Sorg) and is based on the songs of Swedish singer/songwriter Håkan Hellström. The film was nominated for 7 Guldbagge Awards (the Swedish equivalent to the Academy Awards) including Best Direction and Best Film. The duo are currently directing all 8 episodes of Midnight Sun, a limited series for Canal+ and Swedish TV, all of which were written by Mårlind.