I disliked Catherine in this, and I think it may be because of the over-exposure I've had to "manic pixie dream girls" in modern cinema. In the 1960s, I am sure Catherine seemed fiercely independent and genuinely unique. But nowadays I think I can only see her as a female character written by a man whose attempt at creating a free-sprited woman only made her come off as a forced caricature.
For me, Jules and Jim is one of the most effective reminders that writing and visuals are not to be considered entirely separate things. Through Truffaut's expansive use of cinematic techniques, from quick cuts to long takes, the story is given a texture and resonance that make it completely unique. Though I don't love it unreservedly, I'm certain of one thing: this is incredible cinematic storytelling.
Anything Truffaut is an absolute delight to watch, there are so many fantastic cinematic moments in his films. I love that he totally disregards the traditional love story, and depicts it through a menage a trois. His brilliantly avante-garde camera work gracefully illustrates the true madness of love, and leaves the generic tale by the wayside. I would kill to see the looks on people's faces when this came out.
A woman caught up in a web of drama of her own making. Ending this life of hers became the only way out. Truffaut touched multitudes of dimensions in both friendships and romantic relationships without trying too hard. The chapters with Catherine singing "Le Tourbillon" and her burst of tears with Jules before seeing off Jim are my favorite.