Spencer Tracy--as James H. Doolittle, architect of the raid--rates the most towering screen credit, and he's superb. But his role's an extended cameo; the emotional core of the film is B-25 pilot Ted Lawson Van Johnson and his wife, Ellen the glowing Phyllis Thaxter. Lawson's bestselling memoir with Bob Considine of his training for the secret mission, his group's launching from the aircraft carrier Hornet, and his crash landing and protracted ordeal in China--where he lost a leg--has been faithfully served. The film is long on homely detail and all-American decency including a remarkably outspoken regret over the unavoidability of civilian casualties but achieves its greatest impact in the raid itself. That sequence, in addition to boasting Oscar-winning special effects, is mostly shot in riveting silence. --Richard T. Jameson