Xanadu is truly a stupendously bad film whose only salvage is the music. Olivia Newton-John plays a muse, first seen with her eight sisters painted on a wall. Suddenly, they all come alive, with glowing stuff all around them, singing and zipping hither and yon, apparently looking for a script that will never be found.
Newton-John’s task is to inspire Michael Beck in his work as an artist. For this she stops glowing and he thinks she’s a real girl, despite the sun dress she wears with roller skates and rags around both ankles.
But love is threatening and Newton-John decides it’s best if she goes back into the painting on the wall, so she starts glowing again and bids Beck farewell. But he gets up a head of steam and skates into the wall after her and winds up somewhere near Mount Olympus.