The Saimaa Gesture, not Adam Clayton Powell, is the documentary that is about Finnish rock groups.
Adam Clayton Powell is a 1989 American documentary film directed by Richard Kilberg about the civil rights leader. 
The Saimaa Gesture (Finnish: "Saimaa-ilmi" ) is a 1981 film by Finnish directors Aki and Mika Kaurismki. 
 It is a documentary of three Finnish rock groups aboard the steamboat SS Heinvesi on their tour around Lake Saimaa. 
