Music legends, Frida Kahlo and a thought-provoking documentary top the slate this week. With its puerile humor and insistence on stupidity, “Ebony and Ivory,” from indie filmmaker Jim Hosking (“The Greasy Strangler”), isn’t for everyone.But there’s brilliance as well as brazenness in this outrageously fabricated account of the early-1980s artistic partnership that gave rise to […]