Washington, Seattle, Washington, United States of America, 8 Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America ¶ Membership of the ACTG A5321 team is provided in the Acknowledgments. No Doubt Dance Tune Shadow of a Doubt (1943) has often been seen as director/producer Alfred Hitchcock’s best American film (and second film with Universal Studios) – and it was purportedly his own personal favorite….