cannes france u.s. president donald trump stop momentum tackle climate change former u.s. vice-president al gore say monday promote late film global warm cannes film festival inconvenient sequel truth power follow inconvenient truth documentary credit bring climate change mainstream political discourse unite state decade ago shoot mostly trump election feature republican candidate campaign trail promise abolish environmental regulations boost coal oil industries one point trump tell rally need global warm freeze legal political obstacles gore say trump would unable stop momentum would shift society away fossil fuel know four months trump administration one person even president stop climate movement gore tell news conference french film festival court block part president trump attempt congress refuse act part agenda american people determine continue make progress add since take office trump administration move unwind environmental rule frustrate conservatives entertain idea keep unite state global pact fight climate change gore express hope trump would opt quit 2015 paris deal climate change sign countries world believe better-than-even chance surprise many keep u.s. within paris agreement know think chance will inconvenient sequel premier sundance festival january mix review variety say likely another event part conversation movie glory incisive power inconvenience hollywood reporter say documentary big weakness gore fail tackle trump strongly enough quite possibly gore think talk point would jeopardize influence might soon-to-be gold-plate oval office write january one area movie inspire hope future trump ca n't stop american progress climate al gore tell cannes