Mr. Adams jumps out of the plane before Will does. The plane keeps moving forward before Will jumps out, meaning he should have landed several feet away from Mr. Adams, rather than in the same tree.
None of the occupants of the small plane are wearing aviation headsets. The aviation headsets are not only needed for communication with ATC but also they protect the ears from excessive engine noise, which, in the absence of proper protection, can easily cause permanent damage to the occupants' hearing within minutes.
Lisa's father is sitting on the right side when he goes flying with Will. The pilot customarily sits on the left side.
The reflection of studio lights on the top of the plane.