Sean Penn has made his first public appearance since fleeing Ukraine last week amid the Russian land invasion. Speaking in an interview with CNN, the Hollywood actor and activist detailed his trip to the war-torn country. The screen veteran is currently filming a documentary about the conflict. The star and his production team fled on foot to the Polish border alongside thousands of women and children. But the 61-year-old star claims his first-hand experience was one he was “glad to have”. PRAISE FOR PRESIDENT ZELENSKYYSpeaking to Anderson Cooper, Sean Penn opened up about his meeting with Ukr…