Andrei Tarkovsky’s first major film, cowritten by Andrei Konchalovsky, about a 15th-century icon painter. This medieval epic announced the birth of a major talent; it also stuns with the sort of unexpected poetic explosions we’ve come to expect from Tarkovsky: an early flying episode suggesting Gogol, a stirring climax in color. Not to be missed (1965). (Film Center, Art Institute, Columbus Drive at Jackson, Saturday, August 15, 7:00, and Sunday, August 16, 6:00, 443-3737)