Glen or Glenda
Glen or Glenda is a 1953 American exploitation film directed, written by and starring Ed Wood (credited in his starring role as "Daniel Davis"), and featuring Wood's then-girlfriend Dolores Fuller and Bela Lugosi. It was produced by George Weiss who also made the exploitation film Test Tube Babies that same year.
A narrator, called The Scientist (Bela Lugosi), makes cryptic comments about humanity. He first comments that humanity's constant search for the unknown results in startling things coming to light. The cries of a newborn baby are followed by the sirens of an ambulance. One is a sign that a new life has begun, the other that a life has ended.