Continuity mistake: When Robin and Little John fight in the river Robin's hair changes from being dry to wet to dry again despite falling in the river several times.
Continuity mistake: When the soldiers are taking anything valuable out of a village church, when they put up a wanted poster outside, Robin shoots an arrow into the poster and then Little John rips it of the wall and shows it to the men. When someone says, "Give it back" the soldiers drop what they are holding, and the poster is still on the wall with the arrow through it. (01:00:00)
Continuity mistake: After stealing the treasure along with Tuck Robin and Crew open the chest soaking wet. A deleted scene in England - 'throwing the carriage into the lake' - made that bit of the film make no sense.
Revealing mistake: When Friar Tuck hits his head on an over-hanging branch whilst on his cart, it is really obvious his head comes into contact much earlier than the added sound effect and his eventual reaction would suggest. Plus the branch bends and flexes backwards an awful lot - it's not resistant enough to knock someone out as depicted.Andrew Upton
Factual error: Think of the '100 billion dollars' scene in Austin Powers 2, where the President laughs because that kind of money doesn't even exist. You now have an idea how ridiculous it is that a twelfth century outlaw stealing tax money and robbing travellers could get anything like '4 million' as the scribe mentions. King Richard's ransom was only something like 100,000.
Continuity mistake: During the hanging scene, after Wolf attacks Will, when Will is brought to the front of the crowd the manner in which the two guards restrain him changes repeatedly between shots. (01:54:05)
Audio problem: When Robin and his men have Friar Tuck pulling the wagon you can hear the men singing, but in the shot facing them, their lips are not moving.
Continuity mistake: Wolf (the boy) has semi-long, shaggy hair that hangs over his ears and eyes. During the archery contest, however, when Robin has to distract him by flicking his ear with the end of an arrow, his hair has been carefully slicked back to expose his ear during the close-up. In the wide shots, his hair has been left shaggy and down.
Continuity mistake: When the sheriff's men come to take Marian, she defends herself with a rod from the fireplace that was roasting some meat. If the rod had been sitting in the fireplace even for a few minutes, it's probably too hot for her to hold.
Continuity mistake: When Robin and Azeem are about to be launched in the catapult, look at Azeem's sword. When he first gets in, the blade is facing down. It then cuts to Will, then back to Azeem, whose sword is now facing blade up. Then they are launched and Azeem lands with the sword blade down again.
Continuity mistake: When Robin and his men steal the cart of brew and Friar Tuck, the Friar's trousers (that he is wearing under his brown robe) change colour repeatedly between shots.When he is singing, and when he is trying to sit up after the men have opened the chest of money, the are flesh coloured (cream). But when he has been hit on the head by the branch and falls from the cart, they are brown. (01:05:40 - 01:06:45)