Factual error: The crime occurs on Friday, September 6 and the next week, as Kaffee and Weinberg are walking to Weinberg's house and discussing leaving for Cuba the next morning, the ground is covered with leaves and the trees are in full fall color. This doesn't occur in the second (or even the third week) of September in the Washington, D.C./Virginia area. This scene was shot much later, toward the end of October or early November, but it's supposedly well before trial, which is held in early October.
Character mistake: Some of Colonel Jessup's ribbons are in the wrong order, and his Combat Action Ribbon is backwards.
Factual error: Danny is in his apartment watching a baseball game on TV between the San Diego Padres and the Atlanta Braves. The game announcer is Jerry Coleman for the San Diego Padres. Since Danny is in D.C., he would have been watching the game on WTBS TBS Superstation (an Atlanta TV station), and Jerry Coleman wouldn't have been announcing a San Diego Padres game on TBS. It would have been Atlanta announcers. (00:46:00)
Continuity mistake: When Daniel and Sam first meet Dawson and Downey, Sam asks Dawson about the shooting across the defense line into Cuba. As he asks the question, the camera view is from the side and he crosses his arms. The next shot in front of him and his arms are by his side.
Continuity mistake: When Danny asks for his bat and Jo (Demi Moore)says she put it in the closet, her elbows are on the table with her hands clasped. She then breaks them and puts the right one on the table. The next shot shows her and Danny and her elbows are on the table again with her hand clasped.
Continuity mistake: At the end of the arraignment there is a full view of the courtroom and Jo is standing on an angle looking at Danny. The next shot is from the front of them and she's standing straight square at the table.
Continuity mistake: When Jack Ross finishes his opening statement by saying, "And when we get to the end.", you hear a brief pause, but if you look at his jaw it is still moving and the words are now out of sync with his mouth.
Character mistake: When LTJG Kaffee says "whatever happened to saluting an officer when he leaves the room?" It's well known that Kaffee doesn't know much about military protocols, but Marines and Sailors do not salute while uncovered, especially indoors. Army/Air Force maybe, but not the Navy or Marine Corps.
Continuity mistake: When Joanne comes to ask Danny why he has not yet seen his clients, he is just about to swing the bat, and begins to as the shot switches to her face. However, in the very next shot he's standing with the bat, waiting to swing again. The time between the two shots would not have provided adequate time for him to swing and then be waiting for another throw.
Continuity mistake: When Danny walks into the courtroom, just before the beginning of the case, if you look at Dawson's parents his father is standing up and mother sitting down. The shot changes to a view of the parents talking to Danny and both are standing up.
Continuity mistake: When Markinson gets in Lt. Caffey's car you can see his baseball glove on the back window ledge. Then in subsequent shots the glove sometimes missing.
Continuity mistake: When Kaffee drives up to the newsstand at night and buys his magazine and chats with the news vendor, his tie knot is undone down to the second button on his shirt. When he returns to his car and is startled by Markinson in the back seat, his tie is undone only a bit past the first button, much higher than the previous shot. This is largely due, Director Rob Reiner explains, to the fact that part of the scene was shot in D.C. and part of the scene was shot in L.A.