Revealing mistake: When the boulder rolling down the hill hit the man, he "vanished" - he was not flung into the air and it did not look like he got run over by the boulder. [Poor/ineffective CGI]. (00:31:55)
Continuity mistake: The corner of the file folder (containing divorce papers) was touching the edge of the counter but extended past the edge and was closer to the side when Peter approached it. (00:09:25)