Paul Newman's interference
SPOILERS
Hello Everyone,
Here is a video about the missing scene in Torn Curtain (Gromek's brother scene).
http://blog.writingwithhitchcock.com/2010/06/killing-of-gromek-and-his-brother.html
Hitchcock himself tells Truffaut that the factory scene with Gromek's brother is a good scene in Truffaut/Hitchcock Interview. This video explains about this scene and there are few photographs of this scene in the video. Wolfgang Kieling wrote in his autobiography that it was Paul Newman who wanted the factory scene to be cut. This is mentioned by Steven De Rosa.