Audio problem: The cab driver says "in" twice as he's saying hop in. The scene cuts to a closer angle while he's talking. He says "hop in (cut) in."
Continuity mistake: After George retraces Billy's steps before he went to the bank, George yells at Billy that he will not be the one to go to jail, and when Billy starts sobbing his right arm is over his left in the wide shot, but in the semi-closeup it's the opposite way, with Billy's left arm over his right. (01:24:20)
Continuity mistake: After George shows the bank examiner the newspaper and tells him about Harry's honor, George leads Mr. Carter to his office while holding the pipe in his left hand, but it cuts to the semi-closeup and the pipe is suddenly in George's right hand. (01:18:45)
Continuity mistake: While Clarence and George are at the Pottersville cemetery George asks about Mary, and in the shot facing Clarence he's holding his book upside-down with its spine facing him, but it cuts to the closeup and now the book is right-side up, with its spine facing the opposite way. (01:59:20)
Continuity mistake: After George rails at Uncle Billy for losing the bank deposit, when George gets home he removes his scarf and Mary tosses it onto the table beside the telephone. The scarf is still there when George and Mary head to the kitchen, but then it's suddenly gone and it's not on the floor either. Also, Pete jumps off the chair and is behind his parents, then two shots later jumps down again from that chair. (01:25:10)
Continuity mistake: While George is sprinkling coconut on Mary's ice cream he notices the telegram, and when he picks it up we see the lines of the message as well as the folds in the paper. In the next closeup the lines of the message and the paper's folds are entirely different. (00:07:15)
Continuity mistake: When Billy is at the bank to make the deposit he writes the date on the slip, and as he starts to take the cash out of the envelope he's still holding the nib pen between his fingers (behind the inkwell), but in the closeup the pen is gone, then in the next shot it's back between his fingers. (01:19:00)
Continuity mistake: After Clarence saves George from suicide, while they're both inside the bridge tollhouse, a photo suddenly appears tucked behind the thermometer between the two windows which was not in the first interior shot, and then it keeps disappearing and reappearing during this scene. Other changes occur within these shots, such as the window shade to the left of the door and Clarence's book position on the line. (01:39:50)
Continuity mistake: When Mr. Martini is asked if he is renting a new house, his position in front of the chicken wire cage on his truck changes as the scene cuts.
Continuity mistake: In the scene after George and Mary's wedding, Annie suddenly appears between George's mom and Mary's mom as George and Mary make their way to Ernie's cab.
Continuity mistake: When George sits down with Mary on the Davenport in her house's parlor, her left arm is in her lap, then the scene quickly cuts, showing her left arm now resting on the arm.
Continuity mistake: George walks downtown to find Mary. He stops in the street as a man is walking the opposite direction. The man doesn't pass George at any point. The scene cuts to a closer angle and he has disappeared.
Continuity mistake: George throws a rock at the dilapidated house. He is talking about his wishes. Mary starts to turn in one angle and repeats the action in the next angle.
Continuity mistake: When George comes downstairs to eat with his parents, there's a lot of commotion including a barking dog. George looks down at it and the scene cuts instantly to a wider shot. He is no longer looking down.
Continuity mistake: When George is trying to open the gate to Mary's house, the walking stick in his right hand is pointed up, but the next shot it's pointed down.
Continuity mistake: The walking stick carried by George as he wrestles with opening the gate to Mary's house is raised up in the closeup shot, then immediately down in the long shot when he finally is able to open the gate.
Continuity mistake: In the run on the Building and Loan scene, Ernie approaches and stands close to Mary's left shoulder, but the long shot of George confronting the crowd shows Ernie further away from Mary and partially hidden by a column in the office.
Continuity mistake: In the drugstore scene, young George is holding up his latest issue of National Geographic magazine for Mary to see, but the next shot shows George bending down to fill Mary's ice cream dish.
Audio problem: When George and Mary are walking up to the dilapidated house (prior to throwing rocks at it), George is talking. At one point he is saying something and his lips aren't matching.
Continuity mistake: When Violet is leaving for New York, right before she says "I'm glad I know you George", the scene cuts. This is the same camera angle as before so the scene appears to be an edit splice. The jump cut is obvious. The reason for the rough edit is that a short sequence was cut where Violet asks George to run away with her to New York. It doesn't excuse the jump, but does help explain it.
Answer: There is a DVD with colour and black and white.