
Jean-Luc Godard and Anna Karina - Married at the time of their film collaborations, Karina was key to the most fruitful period of Godard's career - the early to mid 60s. She was the lead in many of Godard's films during this period and she proved to adapt well to the different themes and atmospheres, without forsaking their shared interest in whimsy. She could play the philosophical hooker yearning for fulfillment in her most harrowing role as Nana in Vivre sa vie, but then be joie-de-vivre as the clucky singer in the technicolored Une femme est une femme. One film that showcases her ability to switch the nature of her character is Pierrot le fou, where her seeming childlikeness and sense of adventure mask darker, femme-fatale motives.

Woody Allen and Mia Farrow - The whole scandal aside, Allen and Farrow were quite the creative collaborators during the 80s period in which she was his muse. Woody gave Mia showcases for her sometimes underused talents and she in return is part of the reason why Allen's 80s period has so much breadth and is arguably his most consistent as a filmmaker. I think Allen distinctly understood Farrow's talents and her versatility, and so she pretty much never plays the same role twice in a film of his - whether it be as the Italian broad Tina Vitale in Broadway Danny Rose, the fragile Cecilia in The Purple Rose of Cairo, the surface-happy title character in Hannah and Her Sisters or the likeable ditz who becomes a star in Radio Days.
Martin Scorsese and Robert De Niro - Is it a coincidence that (arguably) De Niro'

Frank Capra and Jean Arthur - I could have gone with Capra and Stewart, but I really like the dynamics moreso between Capra and Arthur. Arthur fans would know of the ofte
