forget the shot in notorious where the camera slowly descend from the second floor to ingrid bergman stand in the foyer and a tight closeup of the key in her hand . feast your eye and instead ( and try to figure out how cinematographer wilkie cooper shot it ) on the sequence that begin outside charlotte inwood residence and a richard todd get out of his car and go up the step and open the door and step inside and . . . a the camera stay on his back and now inside the home . . . shut the door behind him and start up the stair and reach the second landing and cross to charlotte bedroom door and enters . one continuous shot from exterior to interior and up the stair . no cutaway . amaze . the shot be echo year later in reverse and in frenzy and where the camera pull back from a murder and go down the stair and out the door onto the street . so why and one wonder and do hitchcock settle for a cheap double exposure shot of dietrich in closeup in the foreground while richard todd be at the window in the background and when gregg toland have already achieve such deep focus shot without trick photography nine year earlier in citizen kane . yes and jane wyman american accent be problematic . a glance reference to her have be educate in america doesn not solve the fact that she suppose to be british . marlene dietrich be 50 and look it . she actually look young seven year later in witness for the prosecution . no matter . the acting be superb all around . the infamous lie flashback at the beginning seem far less troublesome to today audience than it do when the film be release and perhaps because be more accustomed to film play trick with time and now . the character development be exceptional particularly the relationship between jane wyman and michael wilding . ( quick represent name another film star michael wilding . you can not . ) hitchcock take his time with the character . wyman and wilding in the taxi on the way to the garden party be wonderful . be it necessary for hitchcock to insist on superimpose a bloodstain on the doll dress to let u know what alastair sim be think . no . but then and when you have deliver a shot as spectacular a that long dolly of richard todd from exterior to interior and up the stair and you can do anything you darn well please .