Other mistake: When in court as Harrison Ford is leaving after his testimony, Sean Bean puts his right hand behind his back a couple of seconds before the "officer" grabs it. (00:24:27)
Suggested correction: This is a mistake only if you believe Miller's intention during this scene was to grab or strike Ryan. If Miller merely wanted to rail at Ryan, it's understandable that he'd put his arms behind his back preemptively in order to avoid excessively rough treatment from the bailiffs.
Other mistake: The steamship shown in Patriot games is actually a shot from John Wayne's 1955 Sea Chase.
Suggested correction: The use of stock footage in movies is a common practice. More context would be needed to explain why this is a mistake.
Other mistake: When Sean and the two surviving terrorists are on the cliff, looking down at the two boats below, Sean fires a burst at the boats but there are no splashes anywhere to be seen.
