Exhibit 4.1 AMENDMENT NO. 1 TO RIGHTS AGREEMENT Amendment No. 1 (this "Amendment"), dated as of May 18, 2004, to the Rights Agreement, dated as of January 12, 1998 (the "Rights Agreement"), by and between Premier Parks Inc., a Delaware corporation now...Rights Agreement • May 19th, 2004 • Six Flags Inc • Services-miscellaneous amusement & recreation • Delaware
