Paramount's first outdoor Technicolor feature, Trail of the Lonesome Pine was the third film version of John Fox Jr.'s novel. Inspired by the Hatfield-McCoy feud, the story is set in the Blue Ridge mountains of Virginia. Outsider Fred MacMurray arrives to clear the path for a new railroad. Mountain girl Sylvia Sidney falls in love with MacMurray, which incurs the enmity of Sidney's boyfriend Henry Fonda. It also plunks MacMurray in the middle of a long-standing feud between Sidney's family and another mountain clan. Hostilities alternately erupt and simmer until Sidney's youngest brother (Spanky McFarland) is killed by a feud-inspired dynamite blast. This tragic incident brings virtually everyone to their senses, and the feud is finally buried. Better in its individual setpieces than as a unified whole, Trail of the Lonesome Pine is still a worthwhile experience, especially when a pristine three-strip Technicolor print is available.
~ Hal Erickson, All Movie Guide