His debut film, Caracremada, was presented in the Orizzonti section of Venice Film Festival and in San Sebastián. His second feature, the hybrid documentary La substància, was part of the Visions du Réel and Seville festivals, and also had screenings in MNCARS Museum (Madrid) and Barbican (London). Aftersun, his third feature, had its world premiere in FIDMarseille and won a Fugas prize in Documenta Madrid. Graduated in Audiovisual Communication at Pompeu Fabra University, Galter has combined television and film directing.