During the Basket Boy scene, when Bryce grabs Juli to kiss her and she avoids it, she runs past him. In her point of view she is standing on the opposite side and turns away and runs.
After the family dinner at the Loskis, Juli leaves the house and catches up with her family on the street, while, 3 minutes later, as the story is being told from her point of view, she catches up with them before they leave the lawn.
When Juli is in the tree that is about to be taken down she looks down at Bryce. The bus arrives and stops (at around 55 mins). The scene cuts to a close-up shot of Juli speaking, then cuts back to a shot looking down at Bryce and the bus (at around 59 mins), but the bus has moved about a meter backwards.
In the bidding war between the girls they get up to $50. This would have been a lot of money in 1963 and close to a weeks avg pay for most people. 14 year old girls having this amount of cash to spend on a high school event would have been highly unlikely.
The tree that Juli climbs is said to be sycamore tree, however from the close scenes it appeared to be a plane tree.
Bryce's mother's name is Patsy. But when Juli's mom Trina tells Juli's dad Richard that Patsy invited the Bakers to dinner. Trina calls her "Patty".