CAIRO (Update 3) - US actor Sean Penn joined thousands of Egyptian activists who packed downtown Cairo on Friday demanding the end of the emergency law used by Hosni Mubarak against his opponents. Local media said Penn, holding an Egyptian flag, walked with Egyptian actor Khaled el-Nabawi in Tahrir Square, where Egyptians demonstrated in what they dubbed as "Reclaiming the Revolution" day. "The world is inspired by the call for freedom by the courageous revolution of Egypt for its freedom," Penn said in remarks carried by Al-Ahram newspaper's online page. "Clearly that is not a completion overnight, there are still struggles forward, there are constitutional issues," he added. Nabawi said he had invited the Oscar-winning Penn to visit Egypt as part of efforts to demonstrate that Egypt was a safe place to visit despite the uprising. "We want to show that Egypt is safe," Nabawi said. The military council has announced that parliamentary elections will start on Nov. 28 with a mixed system of proportional representation and individual lists. Most political groups fear the system will allow Mubarak supporters to return to office.