When the Janitor is talking to the interviewer, the briefcase is on the floor. When the Janitor hands the can of soda to the interviewer, the briefcase is in his hand and he puts it on the floor.
When the Janitor is talking to the interviewer about Elliot, he holds up a can of soda. The label of the can reads "orange" and uses the symbol of Sunkist soda. Above the label, near the top of the can, is the tip of the "t" in "Sunkist" showing that they wrapped a new label around a Sunkist can.
In the final credits, Murray's (Mathew Perry) father, Gregory (John Bennett Perry) is listed as "Harrison," not "Gregory."