Eugene Volokh sees the irony in Disney potentially getting caught by the very law it lobbied so hard to have passed.

However, under US law the copyright on Peter Pan would have expired in 1986, so it is unlikely that the Great Ormond Street Hostpital are going to have a case in relation to Disney's recent publication of a prequel, "Peter and the Starcatchers" by Dave Barry and Ridley Pearson.