You don't have to risk grass stains -- or squirm on a scratchy blanket -- to see a movie without digging into your pocket.
Free art-related films will be shown at Downtown's Harris Theater, 809 Liberty Ave., courtesy of Pittsburgh Filmmakers in conjunction with the Three Rivers Arts Festival.
7 p.m.: "Electric Signs" -- Documentary examining the growing use of digital screen signage in public spaces and urban environments and their effect on cities and daily life. 57 min.
8:15 p.m.: "Far Out Isn't Enough: The Tomi Ungerer Story" -- A look at an illustrator and successful children's book author in the 1950s, creator of famous protest posters in the 1960s and, later, the erotica which effectively banned him from the publishing industry. 98 min.
4 p.m.: "Maxo Vanka's Masterpiece: The Murals at St. Nicholas Church" -- Pittsburgh filmmaker Kenneth Love explores the significance of the murals and their impact on art historians, parishioners and the public. 55 min.
5:15 p.m.: "Food Design" -- A look at how form, color, smell, consistency, the sounds made during eating, manufacturing technique, history and stories influence food design. 52 min.
6:30 p.m.: "One Day in the Life of Andrei Arsenevich": Chris Marker, who died in July 2012 at age 91 and was a pioneer of the "essay film," used film clips, journal entries and personal musings to pay tribute to his friend, filmmaker Andrei Tarkovsky. 55 min.
7:45 p.m.: "Electric Signs"
2 p.m.: "Bert Stern: The Original Mad Man" -- A look at a great American photographer (he took the pictures of Marilyn Monroe in her last sittings in 1962) who became an original "mad man" on Madison Avenue. 93 min.
4 p.m.: "Food Design"
5:15 p.m.: "Maxo Vanka's Masterpiece: The Murals at St. Nicholas Church"
7:30 p.m.: "Far Out Isn't Enough: The Tomi Ungerer Story"
7:30 p.m.: "Bert Stern: The Original Mad Man"
7:30 p.m.: "Ai Weiwei: Never Sorry" -- An exceptional documentary about the feisty activist who first splashed upon the global stage as co-designer of the lauded 2008 Beijing Olympics Bird's Nest stadium. His celebrity heightened when he later denounced the Olympics as ruling party propaganda that provided a "fake smile for the foreigners." 91 min.
7 p.m.: "One Day in the Life of Andrei Arsenevich"
8:15 p.m.: "Cave of Forgotten Dreams" -- Chronicle of Werner Herzog's expedition into the nearly inaccessible Chauvet Cave in France and the oldest known pictorial creations of humankind. 95 min.
4 p.m.: "Ai Weiwei: Never Sorry"
6 p.m.: "Maxo Vanka's Masterpiece: The Murals at St. Nicholas Church"
7:15 p.m.: "Cave of Forgotten Dreams"'moviesvideo