That’s right! Twilight has until now a list with 52 mistakes of continuity, plot hole, visible crew/equipment and others . The extensive list came from Movie Mistakes. Check it out!
**Please don’t get me wrong, I still think it’s an amazing movie and that’s just for fun. 
Continuity: As Bella and Edward arrive to the baseball field, they pull up in the SUV, then walk along what seems to be a river’s edge, with a tall waterfall in the background. You never see the waterfall during the baseball game, and when they leave the field and walk to the SUV, the SUV is parked practically on the field, a few steps away from where they are standing.
Continuity: In the scene where Bella is looking at Edward across the parking lot after finding out he’s a vampire, she is looking at him and walking towards him. When the shot is on him, he is standing in front of the stairs/ramp, but when he turns to follow her into the woods, he is standing across from the stairs/ramp.
Continuity: When Bella is sitting with Edward near the lake asking his questions about his family and whether they have abilities like Edward’s mind-reading, her woolen mittens jump from her hands to her lap.
Other: When Bella is in the hospital, her left leg is the broken one. [While lying in the bed, her left leg is the one under the blankets, obviously in a cast; while her right leg is bent and her knee is sticking from under the covers.] But when she and Edward go to prom, the cast is on the right leg.
Other: When Bella gets out of the car after Port Angeles she leaves her purse and goes home with her father. When she is at home she then has the book she bought at the store and put in her purse that she left in Edward’s car.
Continuity: While Bella is hanging out inside the van at the La Push beach and Jacob and his friends come to hang out, Jacob turns to grab a tub of Red Vines. In some shots he has the tub next to him, but in others he doesn’t. Also you can see that the guy next to Sam takes a bite of a Red Vine in one shot, and in the next he does not have the Red Vine in his hand anymore.
Visible crew/equipment: Bella is sleeping and dreams about Edward for the first time, and she wakes up in shock and looks over and “thinks” she sees him. Then the camera is back on Bella, and you see the reflection of Edward walking out of the shot. (You see the light reflecting on Bella’s face of Edward’s shadow.) Not hard to miss.
Plot hole: In the last scene with Victoria, she’s looking through the window at Bella and Edward at the prom. But if they were at such close proximity, Edward should have heard Victoria’s thoughts.
Factual error: While getting ready to leave the school for the field trip, you can see the wording on the school bus. It reads’Wilamette Valley,” near where the movie was filmed in Oregon, instead of Forks, WA, where the movie is supposed to take place.
Continuity: When Bella and Edward talk in the woods, Bella drops her backpack behind a tree. The backpack then moves in front of the tree, and then disappears. Since the backpack is bright red, it’s hard to miss.
Continuity: In the first Biology scene, Edward pushes the dish toward Bella. The shot changes and the dishes are next to each other again, but when the shot changes the dishes are apart.
Visible crew/equipment: When Charlie takes Bella up to her bedroom at the beginning of the movie, you can see a microphone wire running from Bella’s jeans up her shirt.
Continuity: In the first outdoor shot of the Scottsdale hotel, in the bottom left of the frame, a large planter with a large cactus is seen. After they cut back to the same location, the planter is gone.
Revealing: When Bella is walking out of her house while talking with Charlie on the first icy morning, before she slips on the ice you can see under her jeans that she is wearing knee pads, and you can see them again once she stands up after falling.
Visible crew/equipment: In the scene where Bella is being cornered by the four men in the dark alley, there is another man behind them on some sort of ramp. He is holding a camera, and in the next shot, he isn’t there.
More Mistakes…
Thanks Foforks for the tip. 
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I thought the scene in which Bella see’s Edward in her room and she says it was a dream…well I actually thought he was in her room watching her sleep so it would not be unrealistic that we see a shadow leave. In the scene they initially show his eyes glaring down at her and then they showed her sleeping, which made me think that they were trying to set it up that he ‘was’ actually in the room and she thought it was a dream. I could be wrong, but I just always thought he really was there, since we know from the books that he watched her all the time.
As for all the other ‘mistakes’…oh well, its still a fantastic film!