Olympic track and field tryouts in Los Angeles

Title: "Track and Field" superimposed over crowd in stands at Los Angeles Memorial Coliseum during night Olympic trials for track and field events / official fires starting gun, racers take off in the 100-meter dash; camera follows race / lighted scoreboard shows Bobby Morrow as winner, with Ira Murchison second / Murrow shakes hands with other runners / 400-meter hurdle race: Glen Davis and another runner finish race, with Davis winning / scoreboard / Davis / crowd rises to its feet / 6/29/56: Charlie Dumas makes high jump; onlookers on field cheer as he breaks existing record; men surround and congratulate him / scoreboard / Dumas walks, wearing "Compton College" sweatshirt / probably 6/30/56, day: racers round curve during 400-meter dash race; Lou Jones wins / crowd in stands / Jones with another racer after victory / runners approach as they jump over hurdle and water obstacle in 3000-meter steeplechase / crowd / racers in the backfield, with Phil Coleman leading and Charles Jones following; the two trade the lead a couple times and Coleman wins / scoreboard / Coleman with Jones and others / racers in 800-meter run / cutaway crowd / Tom Courtney approaches, crossing finish line and winning race / scoreboard / Courtney