Try to watch only half of it.

Rating: Null/10 (14 July 1999)

Impossible. Just like having only one potato-chip or stopping lovemaking before orgasm. Any flick which does this to you deserves my respect. Hitchcock used to say he was into spectator direction rather than actors direction. Think of it. Beside notice how third sequence tells half the story. Greatest "commedia-del-arte" ever where spectator would love to tell character to beware while character strolls unaware of danger.
Kelly offers great acting where she disbelieves fiancé James Stewart during the first half, realizes he's right during a few frames and agrees he's right during the rest of the film.
1954 was a great year for masterpieces. Fellini made La Strada, Kurosawa made the Seven Samurais, Hitchcock made Rear Window and I was born.