After Matt Dillon shoots Cal Strom Jr. as he's about to strike the horses at the hanging tree, the cut shot shows that Festus and Kitty have been replaced atop the horses by a stuntman and stunt woman. Also, the noose around the stuntman's neck comes loose and hangs free down his chest as Doc Adams is holding the horses to keep them from running.
When Kitty and Festus are about to be lynched by the Stroms, Matt Dillon arrives and shoots Cal Jr. before he can swat the horses under Kitty and Festus to hang them. When Doc Adams runs up to grab the bridles of the horses to keep them from running, the noose around Festus' neck comes loose and hangs down his chest.
When Matt is shot entering the Long Branch, He grabs the back of his left leg. After he attends to the wound Doc tells Matt that he won't be able to walk on it for 2 to 4 weeks and after that with crutches or a cane. After Kitty and Festus are kidnapped Matt gets out of bed, walks down stairs and to his horse. And then mounts his horse WITH THE BAD LEG.
As the judge and his son are leaning on a large and sturdy looking limb of a tree in the cemetery, the tree wobbles.
Wounded Matt is in a cot in his office and not supposed to be out of bed for at least a few weeks. With Kitty and Festus kidnapped, he gets up anyway, and tells Thad to go get his horse. The scene changes to Matt's being helped onto his horse, but it's outside Doc's office, which is down the street, and Matt can barely walk.
James Gregory, as Judge Strom is speaking to the barber about Festus, and comments that he always has "enough money in his jeans" to buy liquor. Denim pants were called waist overalls or just overalls. The word jeans did not enter the lexicon until the 1950s.