An early US laserdisc release is missing the car scene mentioned above, but not the pool transition a few minutes later. It is, on the other hand, also missing about 50 seconds at the start of the conversation between Margaret and her father as she tries to pack for the trip to CA (during which he informs her of the plane ticket, questions her choice of dress, and ponders what sort of lady Mitch might have married since the breakup). Like many Disney releases, it is also missing the distribution title card (Buena Vista) and the accompanying drummed introduction to the title song.
Early '80s Disney Home Video releases of "The Parent Trap" are missing the scene in the car between Sharon (playing Susan) and her father before they drive up to the ranch. Also missing is a dissolve between the scene where Sharon (playing Susan) is hearing about the new woman from the housekeeper and when she is going to the pool to meet the new woman(it becomes a straight cut and a few seconds are saved in the process).