This clinical study aims to explore intrapleural low-dose Visudyne®-mediated photodynamic therapy (photo-induction) as a pathway to promote the uptake of systemically administered Lipoplatin™ in pleural malignancies of patients undergoing video-assisted talcage for their malignant pleural effusions. Photo-induction is expected to overcome the chemo-resistance of pleural malignancies for cisplatin-based chemotherapeutics and thereby improve local tumor control.