The documentary “How Can You Mend a Broken Heart,” from Frank Marshall, strives to paint a wider picture of the band often associated with its disco hits.The documentary “How Can You Mend a Broken Heart,” from Frank Marshall, strives to paint a wider picture of the band often associated with its disco hits.Read MoreDocumentary Films and Programs, Marshall, Frank, The Bee Gees: How Can You Mend a Broken Heart (Movie), Gibb, Barry (1946- )