Continuity mistake: Kimble and Gerard are sitting on the ground, handcuffed together. But without unlocking the restraints, Gerard stands up while Kimble remains seated, and moves several feet away, no longer linked to his prisoner. When he sits down, though, they're suddenly cuffed to each other again.
Continuity mistake: Barbara searches the one-armed man's wallet. We see an insert shot of two cards, both with the signature "Fred Johnson." But in the next moment, she claims that no two of the IDs are the same before saying, "Oh, wait, here are two." She then "finds" the cards she'd already found in the earlier shot.