Somehow, I missed this little gem over the years.
Excellent location filming, combined with a compelling script and great acting - a definite must-see for "film noir" fans. My only complaint is the somewhat stale performance by Rhonda Fleming - I think they needed somebody a bit more "earthy" for the part. Richard Erdman and Jean Porter are excellent in their supporting roles.
It was rare in 1951, to see so many actual locations in a film, but this is obviously a low-budget enterprise. Plus, the nature of "noir" is almost always to utilize reality, as opposed to artifice. I did notice some sloppiness with the usage of studio sets; the interiors of the trailers were, of course, sets, and many times when characters exit, the blank studio wall is clearly visible.
One goof occurs when Powell's character drops off Fleming at her office. As the car drives away, the cameraman is clearly visible in the window's reflection. Of course, who knew then that a viewer would eventually be able to freeze-frame a shot?
Great film.....highly recommended.