A dance is taking place with the Genie operating the record player. However, when the Genie accidentally stops the music, two couples in the background can still be seen dancing.
Around the 6 minute mark, Patricia (Lynnette Erving) throws a towel down in anger on a bench top. While scripted, the reaction it causes appears to be a mistake - it accidentally hits a water spray bottle, which Roy Barraclough unsuccessfully tries to catch before it hits the floor. Meanwhile, Ellis Jones leans forward to see what has happened, and raises his fingers to his lips as if to suppress a smile.
Around the 10'38m mark, there's a ripple effect in the fake background outside Mr. Cobbledick's store.