Continuity mistake: During Emma's sword fight with Hook, when Emma is on the ground, reaching for her sword, Hook sticks his own sword into the sand so that he can drag her away from her weapon. Cuts to a different shot, and his sword is lying on the ground, near his feet. A couple of shots later, the sword is planted in the ground again. (00:27:55)
Continuity mistake: After Hook throws the satchel that holds Aurora's heart to Mulan, the way she holds the satchel keeps changing; most noticeably, in some shots, she's holding it by the straps, in others, the satchel is lying in her hand. (00:28:20)
Tallahassee - S2-E6
Continuity mistake: When Hook and Emma find the skeleton of Jack the Giant Killer, in the close-up shot, Jack's sword is in the skeleton's hand. When Emma remarks, "With that toothpick?", the sword is lying beside the hand. When Emma grabs the sword while being chased by the giant, the sword is back in Jack's hand. In addition, the skeleton's arm alternates between being bent and sticking straight out between shots. (00:23:15)
Continuity mistake: When Regina tells Hook about the dark curse, as she says "This new realm", her arm is hanging down by her side. In the next shot, her arm is bent. (00:03:45)
We Are Both - S2-E2
Continuity mistake: When Regina's father, Henry, tells her about Rumplestiltskin, he refers to him as "someone Cora knew before I met her." However, "The Miller's Daughter" establishes that Cora first met Rumplestiltskin while she was locked up in King Xavier's palace, after meeting Prince Henry when she delivered the flour and at the masquerade ball. (00:10:45)
Second Star to the Right - S2-E21
Continuity mistake: When Baelfire eats the bread, what remains of the loaf keeps changing shape and position on the tray between shots, and the two other loaves also move around. When Wendy picks up the tray, all three loaves are untouched. (00:02:20)
Continuity mistake: At Lake Nostos, in the first shot of Emma, Snow and Mulan, there is a giant rock on their left. None of them move, but two shots later, the rock is on their right.
Continuity mistake: At Lake Nostos, when Emma says "You're not going anywhere. This portal's taking us home", in the wideshot, Snow's quiver strap is over her pink cardigan. In the close-up, it is under the cardigan. In addition, Mulan's and Snow's weapons are held at different angles between shots.
Tallahassee - S2-E6
Continuity mistake: When Emma cuts the trip wire in Anton's castle, the surroundings change completely between shots; for example, as she cuts the wire, there is an open chest near her. In the overhead shots, the chest is gone, and Jack's skeleton is missing. (00:33:50)
Continuity mistake: When Snow is dumped by the road by King George's men, the amount of dirt on her clothes keeps changing between shots. (00:14:15)
Tallahassee - S2-E6
Continuity mistake: As Snow and Mulan fight, Snow's pink cardigan gets covered in straws. The amount and position of the straws keep changing during the fight, and afterwards. Also, when Snow tackles Mulan, in the first close-up of them fighting, you can see straws from previous takes on Snow's cardigan, even though she has not come into contact with the ground yet, and the cardigan was perfectly clean in the previous shots. (00:37:40)
Tallahassee - S2-E6
Continuity mistake: When Anton throws the compass to Emma, the compass changes position on the floor between shots, seen from the lines/cracks in the floor. (00:33:45)
The Doctor - S2-E5
Continuity mistake: When Emma is questioning Hook while the group is gathered around the bench, the folds in the cloth/bundle lying on the bench keep changing between shots. (00:14:30)
Continuity mistake: While Emma is talking to Mary Margaret on the phone, an extra (lady with a purple shopping bag) comes from behind Emma. The scene then switches to Mary Margaret, then back to Emma, and we see the exact same extra walking behind her again. (00:14:40)
Continuity mistake: On the plane, Henry is eating baked goods from Cinnabon's. The size and position of the stains of frosting inside the box changes after he says "The only thing that could make this day any better, is more frosting." (00:40:25)
And Straight on Till Morning - S2-E22
Continuity mistake: When Baelfire is getting ready to leave The Jolly Roger, his right hand, which is holding onto the sack he carries behind his back, keeps moving up/down between shots. (00:29:15)
And Straight on Till Morning - S2-E22
Continuity mistake: In the scene where Mr. Smee asks Hook why Baelfire is still aboard The Jolly Roger, when Hook says "Anyone who disobeys can walk the plank and pray the mermaids take pity on his soul", as he begins to walk down the steps, Smee is several meters away from that area, with his back turned (look behind the mast). In the next shot, he is much closer to the steps, and is facing the viewer. (00:26:20)
And Straight on Till Morning - S2-E22
Continuity mistake: At the beginning of the scene where Baelfire confronts Hook about Milah, when Hook is talking to Smee, the hair on his forehead keeps changing between consecutive shots. (00:25:55)
Continuity mistake: When Belle is looking for Baelfire's shawl and distractedly sets down the gun, the gun keeps changing position on the bench. (00:24:00)
Welcome to Storybrooke - S2-E17
Continuity mistake: Baelfire/Neal is in the diner and wraps his scarf around his neck while Emma walks over to him. Then the camera is on Emma and you can see Baelfire/Neal moving as he puts the scarf on. Seconds later the camera switches back to Baelfire/Neal and he wraps the scarf around his neck a second time. (00:25:05)
Chosen answer: Even if one can see the future, it can be somewhat vague and left open to interpretation.
raywest ★
He can sees the future all jumbled up. It is like a puzzle, it is hard to put together, but even when he does put it together it is not set in stone the future can change.