When Barney is drilling the safe, the shot changes from him holding the drill with two hands to only holding the drill with one and back again.
The 'memory cell' that Barney puts into the computer tape drive contains no transistors or integrated circuits, only components such as capacitors and resistors. Without integrated circuits, it could not hold any memory at all.
Around 8m, Trask orders his goon to locate the woman. The goon's reply was, "Right." but his lips moved for a 2-syllable word.