Dancer in the Dark is a 2000 musical drama film directed by Lars von Trier, starring Björk as Selma, a factory worker who dreams of escaping her bleak life through her love of musicals.
It is likely that the title on the movie poster was created using ITC Lubalin Graph Demi, a font originally designed by Herb Lubalin in 1974. This font is commercially available and further information can be found here.