Factual error: A plastic bucket is seen. Plastic buckets were invented in the 60s. (00:50:05)
Suggested correction: There's no plastic bucket seen. If you're referring to the bucket cops are using at the crime, there's a shot of the bucket on its side and you can tell there's a metal bottom.
Continuity mistake: When Hamer goes to the gun store and acquires all the guns, his car is parked in a different spot when he leaves. There is no bench to the front left when he enters the gun store. When he is leaving his old partner is sitting on a bench to the left front of the car. The sandbags and vegetable boxes are also positioned differently in relation to the car. (00:27:50)
Suggested correction: It just seems to be the angle of the shots that make it look different. But you definitely see the bench next to Frank's car when he closes the door to the gun shop, so that part of the mistake is wrong.