"Dragon Ball: Plan to Eradicate the Super Saiyans" (2010) is essentially the same movie as "Dragon Ball Z: Plan to Eradicate the Saiyans" (1993), with some minor omissions and a slighty different ending.
In the new movie, the five Saiyans don't get their information from Mr. Popo, they don't travel to other places to fight monsters and destroy more Destron-gas machines, and they don't fight Goddo Gadon on the Dark Planet, which is much closer to Earth than in the old movie. In the last fight with Hatchihyack, all five saiyans combine their powers to fight him, but in the 1993 movie only Goku, Vegeta, Gohan and Trunks fight him. Piccolo is beaten up too much and gives his Senzu Beans to the other Saiyans.
In the new movie, the five Saiyans don't get their information from Mr. Popo, they don't travel to other places to fight monsters and destroy more Destron-gas machines, and they don't fight Goddo Gadon on the Dark Planet, which is much closer to Earth than in the old movie. In the last fight with Hatchihyack, all five saiyans combine their powers to fight him, but in the 1993 movie only Goku, Vegeta, Gohan and Trunks fight him. Piccolo is beaten up too much and gives his Senzu Beans to the other Saiyans.