Tickets: $10

The Psychotronic Film Society’s long-running weekly Wednesday night series of marginalized or overlooked feature films from around the world continues at The Sentient Bean with a posthumous 96th birthday tribute to the late, great stage and screen actor Jason Robards.

Robards, whose face and voice are instantly recognizable to millions of admiring viewers, is best known for his lead and supporting roles in such challenging, memorable feature films as “Long Day’s Journey into Night,” “Once Upon a Time in the West,” “Johnny Got His Gun,” “All the President’s Men,” “Melvin and Howard” and “Magnolia.” Over the course of his lengthy career, he won a Tony Award, two Oscars and an Emmy.

The PFS salutes Robards with an insanely rare public screening of one of his least-known films (yet one that has a small but fanatical following worldwide): 1975′s “Mr. Sycamore.” Don’t let the movie’s low, low profile (it’s virtually unknown to this day and has been unavailable on home video for decades) or its “G” rating fool you; it’s an absolutely delightful slice of whimsical, emotional filmmaking.

Adapted from a 1942 Broadway play that wound up being one of the most infamous flops of its era, it stars Robards as a postman who desperately longs for some sense of peace and purpose in his life. This longing leads him to become obsessed with a tree along his mail route to the point of wanting to physically become a tree himself — much to the dismay of his family and friends who assume him to be mentally ill, rather than simply idealistic. A bittersweet and inspirational picture that has been unfairly forgotten, it screens at 8 p.m. July 25.