Final answer:
The film "Breathless" (bout de souffle"), released in 1960 by Jean-Luc Godard, is considered the first important New Wave feature.
Step-by-step explanation:
The film often credited as the first important feature of the New Wave movement is Jean-Luc Godard's "Breathless" (À bout de souffle), released in 1960. The New Wave, or Nouvelle Vague, was characterized by its rejection of traditional filmmaking conventions and its embrace of a more personal and freestyle form of cinema. This film in particular broke away from established norms with its use of jump cuts, natural lighting, on-location shooting, and improvised dialogue, which contributed to a more realistic and intimate experience. Earlier advancements in film history, such as the use of camera angles, close-ups, and narrative editing, as well as the transition to sound in films with "The Jazz Singer", paved the way for the innovative techniques that would define the New Wave era.