„Roly-poly” is a volume containing stage works, television and cinema screenplays by Lem.  Two of them, written jointly with Jan Jozef Szczepanski, are adaptations of „Memoirs Found in a Bathtub” and „The Chain of Chance” - were published for the first time.  The TV shows, especially the ones with Professor Tarantoga, are grotesque and witty, which is also the case with „Roly-poly”, on which the excellent film by Andrzej Wajda was based.  The reader may judge for himself how exceptional „filmy” Lem's works are.  Yet for directors he may be a very dire experience – maybe this is the reason why so few of them managed to present Lem's ideas on the big screen.