I never tire of watching this movie. Actually, any Cassavetes movie. Gena Rowlands is beyond compare here. She's brilliant even by her astronomical standards.
All the while she's having her 'episodes' she's always somehow adorable, and even though he's often exasperated by her behaviour you can see the love shining from husband Peter Falk's eyes in another amazing performance.
The whole cast is 100% believable and watching the film I felt like I was almost intruding in something... private. But in a gripping way.
You need this.