"The 15:17 to Paris" The true story on which this film directed by Clint Eastwood is based - three young Americans thwarting a terrorist attack on a train speeding from Amsterdam to Paris - certainly is dramatic enough to warrant the Hollywood treatment. It remains to be seen, though, whether Eastwood's decision to use actual heroes Spencer Stone, Anthony Sadler and Alek Skarlatos, instead of actors to portray them, is wise or foolish. Rated PG-13.