Today, December 4th, would have been the 100th birthday of architect and developer John Portman. For fans of the hotel atrium grandmaster who died in 2017 at 93,Chicago-based MAS Context has arranged a digital screening ofJohn Portman: A Life of Building, a film directed by Ben Loeterman."The film captures Portmans approach in an intimate portrait that, by turn, assesses and appreciates Portmans work," their site explains. "Dramatic time-lapse footage shows off Portmans buildings at their bestoften in moving sunlight that washes over his facades and spaces."The screening is available here until December 31st.Want even more Portman birthday exclusives? Check out the photo essay Capturing the Feeling of John Portmanphotographer and filmmaker Phil Donohue created for MAS Context.Related on Archinect: John Portman's personal Sea Island retreat for sale for $40 million in GeorgiaAnd if you've got $40 million burning a hole in your pocket, consider splurging on Portman's sn...