I was watching Vatman the other day and at the end Superman flies his clone and the lock of hair to the sun to detroy them. However, in Supermann he says that there was only one way to find out whether he could get out of the sun's gravitational pull well either he forgot that he can escape the sun's gravity field or it's a writers continuity thing.
Also I think the actor who played Mr Tracewski also was Misha, sam Lane's lab partner in The Family Hour.