Gaffes

After Jeff falls from the gantry and is rescued by Sam, they are putting the "unconscious" Jeff on a stretcher and he visibly lifts his right arm up on to the stretcher.

After the crane incident, a moving shadow of the boom microphone is visible on the top of the ambulance.

When Red Kelly (Barton MacLane) first meets Jill McGann (Carole Landis), he says, "Nice to meet you, Mrs. Kelly," which is HIS character's last name. A moment later, he calls her by her 'proper' name, Mrs. Gallagher.