Isaac Julien’s films prowl the margins of mainstream cinema. A Londoner whose parents emigrated to England from the Caribbean island of Saint Lucia, Julien, 51, first attracted attention with “Looking for Langston,’’ a black-and-white meditation on Langston Hughes and the Harlem Renaissance that won a Teddy at the 1989 Berlin Film Festival. Julien has since gone on to treat subjects as varied as the 18th-century architect Sir John Soane, the blaxploitation genre of the 1970s, and British director Derek Jarman. But he’s also an artist - he graduated from London’s Central Saint Martins College of Art & Design - and his nine-screen, China-themed video installation, “Ten Thousand Waves,’’ is currently on view at the Institute of Contemporary Art. Today the ICA will complement that installation with an afternoon retrospective of his films, in three separate 90-minute programs.
